Partner disclosure: SewingInsight.com is a participant in the Ebay Partner Network and Amazon Services LLC Associates Program. We earn a small advertising fees by linking to products on Ebay and Amazon. This does not increase the price for you as a reader but you will support our small business.
Singer 403a Slant-O-Matic Review (2023 update)
Note from the Editor: This Singer 403a Slant-O-Matic review was written in 2012 but we reviewed and revised it in 2023. As this machine is now discontinued, we have provided better alternatives such as Making the Cut, HD 4423 and the 9960, in increasing order of price that provide similar features for your sewing needs.
When this machine was introduced to the market, it opened the door for home sewers to experience many sewing advantages for the very first time. Not only was the Singer 403a Slant-O-Matic a groundbreaker when it was introduced, but it remains one of the most durable, reliable sewing machines out there. It was the world’s first home sewing machine to offer a front drop in bobbin, a broad range of decorative stitches, and a slant needle.
Singer 403a Slant-O-Matic: Overview
This machine is no longer produced and you can purchase a pre-owned version on EBAY.
A star of its time, the Singer 403 Slant-O-Matic is a durable all-metal manual machine that brought some of the newest and most advanced features of its day to a household machine. It does not have all the features of modern-day mechanical machines. However, it is a true workhorse and is quite easy to work with. It is heavy-duty and can be kept busy for long hours. It has several features you would not expect in vintage sewing machines, which undoubtedly explains why it is still the winner of its time.
At A Glance
When you look at it today, the Singer 403a Slant-O-Matic looks like any other vintage sewing machine. At the time it was made, however, this machine was the hottest thing on the market. The slanted presser foot shank assembly had never been considered for home use before, and the numerous decorative stitch options were previously only available to professional sewers. Before the Slant-O-Matic, slant shank presser feet and front drop in bobbins were available only on a limited number of industrial sewing machines. The Slant-O-Matic made it possible for all these advantages to be available in every single home sewing room. It literally changed the way home sewers around the world sew.
Features
Although the standard features offered by the Singer 403a Slant-O-Matic were pretty much unheard of in homes at the time, many of the innovative features are commonplace in today’s sewing rooms. They include:
- 9 utility and decorative stitch options
- Ability to sew practically anything and everything
- Clearly written, easy to understand owner’s manual
- Adjustable needle position
- Reverse stitch
- Stitch locking
- Adjustable presser foot pressure
Singer Alternatives to the Slant-O-Matic
Compared to the Singer Slant-O-Matic, the newer models from Singer have better functions and support. As alternatives, we recommend Making the Cut, HD 4423 and the 9960, in increasing order of price.
The Singer M3330 Making the Cut Sewing Machine, featured on Amazon Prime's MAKING THE CUT, is the machine you might want to add to your sewing room if you're searching for a reasonably priced sewing machine with enough capabilities for beginners who want to learn how to sew and for advanced sewers who want to make a variety of sewing projects. This machine offers 97 stitch applications, adjustable stitch options, a built-in needle threader and a built-in cutter for efficiency, and "Making the Cut" technology for unique designs. Its one-step buttonhole, LED lighting, and durable metal frame make it perfect for quilting, garment making, and DIY projects. The included essentials make it ideal for project kick-starts.
- Offers 97 stitch applications, suitable for various fabrics and sewing projects
- Full metal frame ensures long-lasting performance, providing stability during use
- Built-in needle threader and one-step buttonhole simplify the sewing process
- Long-lasting LED lighting provides bright, cool-to-touch illumination for precise work
- You won't be able to use this basic sewing machine, if you're a top-tier professional, to work on complex sewing jobs
The Singer 4423 Heavy-Duty, hailed as the best value for money, caters to a diverse range of projects with its 23 built-in stitches. Ideal for both beginners and seasoned sewers, its automatic needle threader minimizes eye strain, while the high-speed capability of 1,100 stitches-per-minute ensures swift completion of tasks. The heavy-duty metal frame adds durability, allowing it to effortlessly handle thick fabrics. With a comprehensive set of accessories, this workhorse is a reliable companion for various sewing ventures.
- Blazing fast
- Compared to other Singer sewing machines, the top-load bobbin is easier to use
- Amazing sewing power for both thin and thick fabrics
- Sensitive foot pedal for beginners
- Needle threader only works when the needle is perfectly up
Versatility, premium features, and precision define the Singer Quantum Stylist 9960. The sewing machine scores full marks in terms of 600 built-in stitches, which comprise stretch, decorative, and quilting options to pamper your inner sewer. Then, the device comes ahead with a needle threader and automatic thread cutter to save you time. You will even come across a speed control slider designed for both professionals and beginners. The machine also startles you with 13 fully automatic buttonholes and a wide array of presser feet to boost the value so you can sew diverse projects.
- Various stitching options
- Intuitive, easy-to-read LCD screen
- Allows 850 stitches per minute with a robust motor
- You get an additional table and wide presser feet.
- Heavy structure.
- Limited throat space for massive quilting projects.
Working on the Singer 403a Slant-O-Matic
Winding the bobbin on the Singer 403a Slant-O-Matic is a piece of cake. Everything is literally at your fingertips. After mounting the thread on the spool pin at the base of the machine head, loop your thread through the guide next to the spool pin and up to the bobbin, which is placed on the winder, less than three inches above the thread spool. The needle motion is then disengaged by holding the balance wheel and turning the stop motion dial a quarter turn toward the back. Then merely engage the foot pedal, and voilà, your bobbin is winding.
Threading the Singer 403a Slant-O-Matic is just as easy. Just follow the easy-to-follow on-board guides, and before you know it, your machine is threaded and you are ready to sew. Double needles had not yet been introduced for home use when the Singer 403a Slant-O-Matic was made, but that didn’t stop the manufacturer. This machine is not only equipped with the capability to sew with two needles simultaneously, it also offers three different needle positions. Adjusting the needle position and stitch length and width are as easy as turning a dial and setting a lever at the desired position.
It’s probably because I have been spoiled by being able to select decorative and utility stitches with a mere touch on a LCD screen or by dialing up a desired stitch on a keypad, but for me, the stitch selection process on this machine was a little bit of a challenge. In addition to inserting the disc to achieve the desired stitch, it is also necessary to make a few adjustments to the stitch length and width, and even the needle plate in some cases. But since I was working on the first home sewing machine that had any decorative stitches at all, I had to admit that I was impressed by the variety of stitches and the genius it took to make such an innovative machine. After all, this machine is more than 50 years old. When you think about that bit of trivia, it’s not only amazing to think that all of these firsts were jam packed into one sewing machine, it also forces one to take a second look at what we may call a challenge.
As difficult as it may be, we really have to think about the fact that the Singer 403a Slant-O-Matic is the groundbreaker that it truly is and then reconsider our criticism about the stitch selection process. Luckily, the owner’s manual was available. With the manual in hand, I was able to use it as a guide to do the different stitches with the least amount of trouble. What may be a challenge for the 21st Century home sewer was no doubt a dream come true for the home sewer of the mid-1950s. My complaint about having to take time to change discs and machine settings just proves how spoiled we have become in just a few short years. With that in mind, and my own inability to get the hang of going through so many steps to achieve different stitches, I must admit that the stitch quality is excellent… better, in fact, than some of the newer machines I’ve had the pleasure of reviewing.
Fabrics
- Natural fibers/cotton-linen-wool
- Fine fabrics/silk-satin-taffeta/velvet
- Knits
- Synthetic fabrics/blends-rayon-polyester
- Upholstery
- Extra thick fabrics or multiple layers
- Leather / Suede
- Fur
- Reptile Skin
- Canvas / Twill
- Plastic / Rubber
Accessories
The Singer 403a Slant-O-Matic came with an accessories case that contained the following:
- 8 Presser Feet
- Straight stitch
- General purpose
- Special purpose
- Button
- Zipper
- Rolled hem
- Multi-slotted binder or bias tape foot
- Ruffler
- Seam guide
- 8 Drop in fashion discs to give the user access to various decorative stitch options
- Lint brush
- Screw driver
- Oil dispenser
- Extra bobbins
- Extra needles
- 2 needle plates
- Owner’s instruction manual
In addition, the following optional presser feet were also available at local Singer stores:
- Darning and embroidery – This one is very much like the darning foot that is used in the 21st Century.
- Tucker – I must admit this quite odd looking presser foot is a new one for me. This odd looking attachment has two different gages for measuring the space between tucks as well as the tucks themselves. According to the manual, users can make tucks up to one inch deep with expert accuracy.
- Gathering – While it’s called a gathering foot, it is actually used specifically for shirring. According to the owner’s manual, anyone who uses this specialty foot will be able to expertly and quickly produce “single or multiple rows of shirring.”
- Edge stitcher – The drawing in the owner’s manual is quite different from the edger stitchers in use today, but the results are basically the same. This presser foot is used to join fabric, inserting lace and for sewing French seams (a somewhat obsolete practice these days).
Other optional accessories include a set of 12 additional fashion discs, bringing the total number of available decorative and utility stitch options to a total of 21.
Alternatives: Computerized Sewing Machines
If you are unsure of the Singer brand, check these cool computerized sewing machines that we highly recommend Brother CS 5055 and the Janome MOD-50
Priced under $200, the Brother CS5055 computerized sewing machine is a versatile powerhouse catering to both novices and seasoned enthusiasts. Boasting 60 unique built-in stitches, including utility, decorative, and heirloom functions, it allows for creative embellishments. The improved needle threader ensures hassle-free threading, complemented by a jam-resistant drop-in top bobbin for smooth operation. The durable metal frame and fixed needle bar contribute to cleaner stitching and even lines, handling diverse projects with ease. With a generous needle-to-arm workspace, users can tackle larger projects effortlessly. The CS5055, equipped with an LCD display and user-friendly features, transforms garments into personalized fashion statements, making it an ideal investment for sewing aficionados.
- Affordable
- More features than mechanical machines on this list so far
- Light-weight at around 10 lbs
- You can't order parts for this machine. You have to visit authorized repair centers
The Janome MOD-50, part of the diverse Mod line, offers 50 built-in stitches, including 3 one-step buttonholes. Ideal for unleashing creativity, it simplifies sewing modern garments, home decor, and quilts. With user-friendly features like easy threading, top-loading bobbin, and convenient buttons, this machine caters to both beginners and intermediate sewists. Its precision and reliability make it a go-to tool for tackling sewing projects with confidence. The MOD-50 seamlessly blends innovation and functionality for a satisfying sewing experience.
- Extensive Built-in Stitches
- Easy Reverse Button
- Can be a little noisy
Maintenance
| Maintenance activities | After each use | Monthly | Once each year | As needed |
|---|---|---|---|---|
| Clean race hook and feed dogs | Yes | No | No | No |
| Wipe head with soft dry cloth | No | No | No | Yes |
| Wipe head with soft damp cloth | No | No | No | Yes |
| Lubricate | No | No | No | No |
| Service by sewing machine repair professional | No | No | Yes | No |
Tying Off The Loose Ends
Even after nearly 55 years, the Singer 403a Slant-O-Matic remains one of the most reliable and dependable sewing machines out there. While changing fashion discs and machine settings is time-consuming and even difficult, the fact that this is the first sewing machine to feature front drop-in bobbins, slant presser foot shank construction, and a plethora of utility and decorative stitch options makes it a machine worth considering.
The Singer 403a Slant-O-Matic that I reviewed is used in sewing classes at Think Outside the Store in Silver Spring, MD, and not for sale. My guess is finding one for sale is probably like finding the proverbial needle in a haystack. But that doesn’t mean they are impossible to locate. I found one on e-bay. The asking price was $224.95, a testament to the long standing value of a machine of this vintage. Most of the time, sewing machines made by other companies around the same age are sold for a lot less. An added benefit is that it is a Singer, meaning anyone who purchases a 403a Slant-O-Matic has the resources of Singer tech support at their disposal. Any authorized Singer dealer or repair professional is fully qualified to service and repair this machine, just as they do for any brand new Singer sewing machine or serger fresh out of the box.
If you are an advanced sewist, have a look at our best sewing machines, best sewing books and best sewing magazines posts and if you are looking to get a mechanical, heavy duty, quilting or industrial sewing machine, have a look at some of our great articles. If you are a beginner sewist, review our best sewing books for beginners, best sewing machines for beginners and best sewing machines under $200 to get started.
For brand related articles, check Best Bernette | Best Bernina | Best Brother | Best Husqvarna Viking | Best Janome | Best Juki | Best Singer |
For best accessories, check Best Chairs | Best tables | Best tracing paper | Best machine oils | Best scissors and shears | Best presser feet | Best needles | Best sewing kits |
Happy Stitching.
Other Discontinued / Vintage Models you may like
BERNINA Bernette Deco 600 Review (2023 update)
We were particularly impressed by the fact that the Bernina Bernette Deco 600 machine literally sews all by itself. It is equipped with an interactive touch screen, 32 preloaded embroidery designs and a slot for insertion of memory cards which offer users an almost unlimited number of embroidery design options.
Brother Pacesetter ULT-2002D Review (2023 update)
If the Brother DreamWeaver embroidery and sewing machine is on your wish list, but you simply don’t have the resources to get one right now, you may want to take a close look at one of its early predecessors – the Brother Pacesetter ULT 2002D. It doesn’t have all the bells and whistles available on the DreamWeaver, but the basic features are there and they work great.
Singer 99 Review (2023 update)
The Singer 99 is special because next to the Featherweight, it was possibly the most popular portable sewing machine of its day. Vintage sewing machines are not for everyone. However, you owe it to yourself to at least take a very close look at this one and if at all possible, take a few minutes to sit down and play around with it, especially if you are serious about sewing. If you have never worked on an antique sewing machine before, the Singer 99 will give you a whole new perspective about the genius that went into creating sewing machines for home use so very long ago.
Janome MB4 Review (2023 update)
If machine embroidery is your thing, you are going to love this one. Although the Janome MB 4 looks like it needs a whole lot of space in your sewing room, the truth is, its footprint is no larger than that of the Janome 1100. In keeping with Janome’s reputation as an innovator in home machine embroidery, the MB 4 is the first ever four needle home embroidery machine.
Singer 403a Slant-O-Matic Review
Summary
Even after nearly 55 years, the Singer 403a Slant-O-Matic remains one of the most reliable and dependable sewing machines out there. While changing fashion discs and machine settings is time-consuming and even difficult, the fact that this is the first sewing machine to feature front drop-in bobbins, slant presser foot shank construction, and a plethora of utility and decorative stitch options makes it a machine worth considering. As this machine is now discontinued, we have provided better alternatives such as Making the Cut, HD 4423 and the 9960, in increasing order of price that provide similar features for your sewing needs.
If you are an advanced sewist, have a look at our best sewing machines, best sewing books and best sewing magazines posts and if you are looking to get a mechanical, heavy duty, quilting or industrial sewing machine, have a look at some of our great articles. If you are a beginner sewist, review our best sewing books for beginners, best sewing machines for beginners and best sewing machines under $200 to get started.
For brand related articles, check Best Bernette | Best Bernina | Best Brother | Best Husqvarna Viking | Best Janome | Best Juki | Best Singer |
For best accessories, check Best Chairs | Best tables | Best tracing paper | Best machine oils | Best scissors and shears | Best presser feet | Best needles | Best sewing kits |
Happy Stitching.
I have a 403 special slant o matic with the manual and all those attachments/accessories pictured above that I would like to sell. Would I put it on Ebay or Craigslist? Also, does the built-in cabinet help the value?
Sondra –
Thank you for visiting Sewing Insight.
You can certainly sell your machine on e-bay or Craigslist. I think, however, that you might also consider working with a local dealer who specializes in vintage sewing machines.
The cabinet and the fact that you have all of the accessories as well as the owner’s manual definitely add to the overall value of your machine.
Good luck.
Great information the 403a i have one needs repair needle dose not move can you direct me a website that show to repair the 403a
Hi, Carol –
Thank you for visiting Sewing Insight. If your needle isn’t moving at all, there is a possibility that you have a problem that is best handled by a sewing machine repair professional.
If I were you, I would not attempt to make this repair at home. Trying to fix this problem on your own could result in a much more serious problem.
Happy stitching.
Lucky me I just had one of these given to me. I am very excited about your review . I have 11 other machines and worked on a 411G recently for a friend. It could be my next work horse. Thank you.
I recently purchased a 403A at an estate sale for $20 and am excited to start using it after a thorough cleaning. If it works as great as my 301A, also purchased at an e-sale (for $40), it will be another great blessing to this senior sewer.
If one has an opportunity to purchase one, IMO, you’ll not be disappointed. They indeed are great quality!
I have been using this model of machine for over 20 years now. I might purchase a new machine but with as much as I sew, they usually don’t do as well as this one.
I have even started buying extras on Ebay for the parts! This is a great machine and, with proper care, I expect it to last me another 20 years at least!
If you ever get your hands on a working model, keep it, don’t let it go. You will come back to it time and time again for things you cannot sew on new machines, such as lambskin and leather.
Thank you for your input. I am new to bag making and have been looking for a good solid machine to be able to sew cork, leather, vinyl, duck canvas with several layers. And you stated this one is a work horse and will go through several layers of different types of material? Is it better than an industry machine?
I found one on craigslist with a cabinet for $140! It was clean as a whistle except for fresh oil and grease. I was even given a look inside top and bottom and a maintenence lesson by the seller after my test drive! I love this machine. I have been sewing for 45 years, including factories before they all went south, have 9 machines in the back room and this is by far my favorite. I harldy ever have to roll out the commercial Consew machine on it’s 8 casters any longer. The 403A even does a great job on leather and canvas!!
Many thanks for this site as I didn’t know what model I own.I was given a 403A many years ago by a friend..his sister had passed and his wife did not sew. What luck! I love it, I work with anything from leather to the sheerest of fabrics. It has only been the shop once for repair. Eight years ago I downsized to a condo. I was allowed to leave some things in the garage till I could dispose of them. I left my machine behind to be discarded and bought a table top. Within a couple of days I went running back to my old garage to retrieve my precious machine (I was making curtains)….I would “make” room for it, something else would have to go!! My only wish is that it “outlives” me.
Hello, Karen –
Thank you for visiting Sewing Insight.
You did the right thing by going back to retrieve your Singer 403a. There is no doubt whatsoever this great machine will outlive all of us. Just make sure when you write your will, you leave it to someone who will love it as much as you do.
In the meantime… Happy Stitching.
In process of moving the bobbin case for my 403a was lost. Can you ell me where to get replacement?
We have just recently acquired one of these machines. It did not come with the manual or the discs. Can you suggest where i might acquire these objects? Thanks
Try ebay.
Did that, can’t seem to locate an entire set of parts.
Hello, Kandy –
Thank you for visiting Sewing Insight.
Here’s a link where you can download the manual.
http://www.singerco.com/uploads/download/820905d82ad083c6ccd4ad6d3fea3e4d59827cf9.pdf
If you can’t find the discs on e-bay, try some local shops where vintage sewing machines and parts are sold. Many times, they will also be the places where people who own vintage sewing machines take them for repair.
Happy stitching.
Bought mine from a friend 40 years ago. What a workhorse!! Sewed halloween costurmes, dance costumes, clothing, curtains and hemmed a ton of jeans. Have had it cleaned, tuned up a couple of times. Now I am having difficulty finding bobbins to fit it at JoAnne Fabrics. Can’t find what size bobbin it requires as I look at my manual. Help?
Another question. Has anyone had trouble with the bottom tension? My repairman says it is wearing out. I don’t want to hear that. Love this machine. Any suggestions?
Plastic class 66
Looking for parts for the table opening. Any suggestions.
I use my 403a all the time., tho I also have 5 other machines. Recently it has become noisy and thread is catching in the bobbin . I have several styles of bobbins, all fit in the 403a, but wondered if perhaps I was using one that I shouldn’t. My original users manual does not specify a bobin in size .
Thanks for your help… I do not have a sewing machine repair center nearby.
Thank you for your review. Just bought my first sewing machine which is this one. Got it from an antique store for $75. I want to make my own camping gear and it seems that this could stitch thin ripstop nylon as well as thicker Cordura.
My question is about the double needle. While I’ll try it out soon (need to get needles), I’m not picturing how it can sew two parallel straight stitches with only one bobbin thread. Will the top thread look like two rows while the bobbin thread is one row?
At any rate, it appears I purchased a great machine. With my practice stitches with one needle I had to figure out the right tension, but once I did, the straight and zig zag stitches are perfect.
Hello, Chad –
Thank you for visiting Sewing Insight.
Before you invest in a double needle, make sure your Slant-o-Matic can take it. I have a vintage machine, made after your Singer and the opening in my zigzag needle plate is too small to accommodate a standard double needle. If this is the case with your Singer, your question is moot. Remember… these machines were manufactured BEFORE double needles were made available for home use.
When I want a double row of stitches in that particular machine, I just sew two rows. It really isn’t that difficult. Nor does it take that much time. The advantage is I can have as much or as little space between rows of stitches as I want.
Happy stitching.
Actually, the needle clamp on the 403A can take two 15 x 1 needles, according to p37 of the 403 manual. Can even take two needles of different sizes for effects, too. Threading two needles is well described in the following pages of the manual.
I received a 58 403 slant and of course with my luck I broke the needle. I changed the needle with one I had from before I received this machine and now it doesn’t stitch tight. it is so loose that all I have to do is pull the thread. I did not change any settings from before the needle broke, so I would assume it would work.
Hello, Connie –
Thank you for visiting Sewing Insight.
Did you get an owner’s manual when you received your 58 403?
Did you re-thread the machine correctly when you changed the needle?
Is the new needle the same size as the needle that broke?
All of these things can affect the way your machine stitches. If you do not have a manual, you can download one free of charge at http://www.singerco.com/support/instruction-manuals.
Happy stitching.
I have my aunt’s slant-o-matic 403 special sewing machine in a cabinet with 3 drawers, the original manual, attachments, bobbins, needles. She died last year at the age of 95 and sewed on it all her life. I live in Missouri and would like to sell it.
Interested. Please email me. Hollybakerryan@gmail.com
Have you sold it yet? I’m looking for one and live in missouri also.
I have a 58 Slant-o-matic that won’t stitch despite my repeated attempts to rethread and re-insert the bobbin. The thread breaks immediately so I’ve adjusted the tension….that didn’t help. I have the manual and have troubleshooted with it. This was my Mom’s machine, and she sewed on it voraciously for years, and it’s the machine I learned how to sew on, but I’m super frustrated with it right now! And, sadly, my Mom passed away almost 2 years ago, so I can’t call her to ask for help like I used to. Anyone out there help me out?
Hello, Rose –
When was the last time this machine was serviced by an authorized sewing machine repair professional. While we know how to clean and care for our vintage sewing machines, they also require the attention of a trained professional from time to time. I suspect it needs a thorough cleaning inside and out. Perhaps a small part may need to be adjusted or replaced as well.
Happy stitching.
Hello,
Thank you for your response, but since I posted my question, I figured out the problem and it had nothing to do with the need for a professional cleaning, etc. When I took the needle out, I realized that the needle was in backwards! I replaced it the correct way, and BAM….I’m back in business, all the while, laughing at myself about it.
I had this exact problem and looked through troubleshooting guide. Check your new needle…The needle may be in backwards- the flat side of the needle should face you.
Hello!
I am so happy to find you all! I have a 403 special (with all the original parts, box, etc). that was given to my mother and hardly used. I on the other hand have sewn with it for 35 years, and its still going strong. My question, I have never been able to get a blind stitch with the blind stitch attachment (disc 8), I see the full row of stitches on the finished side of the hem, any hints?
Lynn
Hi,
I just acquired one of these machines after my $200 modern brother went out on me after 4 years. The site says it is good for sewing multiple layers and thick fabrics. However the needle doesn’t lift much. I need it to sew patches on leather jackets. I did them on my old machine, but it just didn’t really have the power. This one is definitely powerful enough put the foot just doesn’t seem to lift high enough? Am I missing something? Thank you.
I am having trouble with bottom stitch gathering and thread from bobbin extremely tight that I have to cut my material free. I am sewing a fine sheer slippery nylon type of material. I have tried adjusting the tensions which still do not fix the problem. Would love additional advice. Thanks!
My mother purchased a brand new 403A with cabinet in about 1955-56 timeframe. It was top of the line at the time. Machine and Cabinet cost $500. I am lucky to have inherited this amazing workhorse. I did not use it for many years and when I retired, I took it to my local quilt shop/machine repair shop for a good check-up and the repair man said it was in perfect shape; and my mother used it a lot!!!, making clothes, draperies, slipcovers. He said it was one of the top 10 sewing machines to have. He is an expert, he even does sewing for NASA. He said this machine will easily sew thru soft drink cans. So grateful to have it.
I am looking for a Singer 403a machine in good shape. I live in central Missouri and am willing to travel to check it out and pick up.
I have one I would sell for $100, I live in South central In.
I happen to be in Indiana this weekend. Call or text me 573 239 3594.
The last name in Finley. got carried away with my typing. Ooops
Trying to locate a replacement motor and repair manual for a singer 403a.
Any leads would be appreciated.
Thank you.
the best manual I have found yet can be downloaded here https://sewingdude.wordpress.com/ for free just enter your model number in the search at the bottom of the right column. The manual for the 403a is the same as the manual for the 401and 404. As for a motor I have found one on ebay for about 30 bucks.
I know the manual says this machine take a 15×1 needle, but do they sell these at JoAnn’s?? I was looking at all the universal needles they carry, but didn’t find anything with these numbers. I’d love to buy them in the store vs buying online.
Thanks!
Jennie, I had a similar problem when I was using 2 slightly different threads between the top thread and the bobbin thread. So… I learned quickly that my Singer 403 is a bit fussy with some threads. What I tried doing g was when I am working on a project, I buy 2 identical spools to use: one for my top needle thread and the second one for my bobbin thread. The problem went away immediately…. Until I accidentally used a bobbin with a different make of thread and voila! My problem came back! So now I am very careful and use the same thread for needle and bobbin!! Hope this helps you too!!
Am I glad I just happened upon your website! I have a 403 Singer and absolutely LOVE it! I learned on this machine many years ago as my mother had one. Bought this one on ebay 2 years ago and it looks brand new, was expertly maintained over the years, and even had all the attachments and wood case – all in perfect condition! Anyway, my question is relating to making quilts on this machine. I find that when using a medium or high loft batting, and I try to sew thru the thickness, the machine seems to have so much downward pressure causing the materials to bunch and not feed thru easily. Works fine using a very low-loft batting. I am using a walking foot, I have reduced the tension regulator knob, and I have lengthened the stitches to a 6. The tension knob is turned to the least pressure and my thread tension is set at “1”. I also tried my other foot attachments. Nothing works, and I am so frustrated! Is this machine not able to handle quilting with high batting loft thicknesses? Is there something else I can try? Thanks for any light you can shed. I also loved your discussion about the 403 ! It is a wonderful machine!
I wrote a reply which was to answer a thread-breaking problem for “ROSE” but I mistakenly wrote it to JENNIE. SORRY!!
Vernelle,
I like what I see on your site. Are you located in California? I have been sewing since I was three years of age. I was pro at it before I was eighteen. I am not sure what I have not made. I am also a person that like staying busy all the time. I am a Senior Citizen now, and I just graduated from CA ST University Dominguez Hills with a BA in Africana Studies. I got a AS from Southwest Community College and worked a TA helping other students to learn to used the Computer. The list goes on. To make this short. After seeing what you are doing, I would love to meet you, and discussed a plain with you. Most of the works I have done over the years has been by myself. saying that, I have only worked eight years of my life for anyone else, and I am not talking about the four years I worked for LA South West.
I done Sewing, Upholstery, and made Customer Drapery for years. This is just part of what I can do. I have a small Singer Sewing that were given to me by one of my Senior Customer long ago. Today, I decided to clean it up and I had already made sure it work some time ago. I was looking for information on it, and came across your site.
Dear Vernelle, I purchased my 403 Special in 1958 and have sewn MANY items over the years. Recently, I was putting in buttonholes and my needle position selector stopped working. It has been maintained with oil and lubricant hundreds of times. My needle will go to the right, and center, most of the time…however it doesn’t want to go to the left. I have completely cleaned everything and still no luck. I can’t see anything broken, and wondered if there is a trick I am missing. It seems to have happened when I was zigzagging and moved from 3 to 5 bight.
I have a 403a that I would love to sell to someone that could get some use out of. Its in good shape and works great. I live in southern Indiana and would sell it for $75.
I have a 403a and we love the straight stitch. Got it used.
The zig zag does not work even with the special discs – none of them work.
We are in the process of cleaning the machine – the manual didn’t have any troubleshooting ideas.
Any thoughts would be great.
Kind regards – Allen
I would like to quilt on my singer 403a machine. I need a walking foot for quilting. Does this machine have the capability for a walking foot attachment
I just got a walking foot for my 403A machine and it worked perfectly. The one at Joann’s does not fit the machine.
A walking foot was available as an original accessory, they appear on eBay occasionally.
Just picked one up on Ebay.
It has been a single owner backup machine for most of it’s life living in a cabinet.
It looks brand new.
I paid $200 shipped. It has been recently serviced.
This is my first thread injector.
You are mistaken about the Slant-o-Matics being the first home sewing machines to offer drop-in bobbins. I don’t know all the preceding models that had it, but I know for a fact that the Singer 99, 66, and 201 had a drop-in bobbins years before Slant-o-Matics came along.
Thanks for publishing this. I couldn’t find my manual and wanted to know what the model name and number were to get some parts. I have used this awesome sewing maching since I bought it used in 1976 with babysitting money!! The only think I notices is that I have to use the threads on the skinny plastic spools for the top thread or it breaks to easily. I had it serviced once in the 90’s and otherwise just keep up on cleaning it.
I agree this machine has a lot going for it and I am a fan. Just want to mention if it has not been said here yet as a point of clarification……This was not the first slant shank machine for home use. That distinction goes to a slightly earlier singer, the 301.
I am thinking of bidding on a Singer 403A but I can’t find out in advance whether it comes with any cams. If there are no cams included, will I be able to sew zigzag, or just straight stitching? Is the #0 zigzag cam affixed to the machine or is it removable, so that it might be missing?
Thanks!
Where can I find a walking foot for my Singer Slant-O Matic. 403 special?
Hi Louis,
did you find the walking feet? I would like to get one. Thanks
I just happened across this site while trying to find a reasonable priced 403 or 403a. My 403a was stolen while I was moving and I was heartbroken. My mom bought it in 1958 brand new and made clothes for her new baby (me, lol!) I learned to sew on it and both my mother and I never let it rest. It fully became mine after she passed. I am going nuts not being able to sew. Is there anybody that has one that doesn’t want an arm and a leg? Call me spoiled but I haven’t found any machine that compared to the 403a. I live in the Southern Tier area of New York state. Thanks for reading this.
I am also having trouble getting my 403 discs to work. I have cleaned the machine well -any hints? Also interested in getting a walking foot for it but dont know where…
Hi PAm, I am looking for a walking foot for this machine. Did you get one? Please let me know. Thanks,
The 403A is NOT the first to sue the drop in top bobbin. The 99 had this feature YEARS before the 403A!
I have the 403 special slant o matic that my dad had bought for my mom in 1958. It is the one I learned to sew on. My mom was constantly sewing with it. I remember her making boat covers for their boat so that we would stay dry while fishing on the lake. The sewing was never the problem but the industrial snaps sure were! I used it off and on after I got married when I would come to visit. I also do alot of sewing.
My husband had gotten me a used singer 158 when we got married, back in 73, used it alot over the years, along with a singer 2662, I had to buy when I was in a bind trying to get a project done and the 158 kept acting up. And wishing I lived closer to my mom so I could borrow her 403. Then my mom had fallen over the steps in her basement which forced her to have to move into an assisted living apartment. Unfortunately she couldn’t take her sewing machine, so it came to me. Let me tell you that sewing machine is still going strong especially with this pandemic! I have made numerous face masks for the area hospitals, clinics, pharmacies, friends, church, and family. And the only thing I have had to do to it was send it to my local Singer sewing machine dealer, to have it cleaned and tuned along with my other two machines. Now I am back in business. I wouldn’t give up any of my Singer machines, but especially my mom’s 403! I just hope that one of my granddaughters will along with my help, love sewing that I will pass it on to them!
Hello. I came across this site because I just acquired a 403A that was locked up tight and have already loosened all the gunk up and it’s moving everywhere. I’ve removed the needle bar assembly, the presser bar assembly and cleaned it all up and it looks beautiful. Just have more things to do to finish cleaning up this machine and I just thought I would let people on this site know that Andy Tube on YouTube does vintage repair slant shank sewing machines. He has a machine he completely restored and it’s name is Regina. Go to his page on YouTube and you won’t be disappointed, he walks you through absolutely everything you need to do to fix these wonderful machines.
He has quite a few machines but Regina is a 403a.
I Have a singer 403 special in the cabinet with 3 drawers original manual, attachments, bobbin needles and everything needed to sew it was giving to me but i dont sew i do other crafts. i am looking for someone who specializes in vintage sewing machine to sell.
I’m interested in your sewing machine. My mother gave her 403 Slant-o-matic to my daughter who is learning to sew on it. I have a newer Singer but love my mom’s 403 as I learned on it and it sews the best!! She sewed everything on it for 60 yrs. Please let me know if you still have it. Thank you, Lori
I just received one of these machines however it has not one accessory or booklet. Would you be willing to share the manual to a fellow owner who has no clue what she’s doing with this beautiful vintage machine?!?
Interesting story.
This is a wonderful machine. I have one, without the cabinet, and at the moment I am thinking about selling it. I have the original manual and all disks and accessories. I would love thttps://sewinginsight.com/singer/singer-403a-slant-o-matic/#respondo keep it but … I have 2 other sewing machines…. Hard to make my mind about selling this one 🙁
I bought a kenmore machine in the 70’s, all metal, 12 built in stitches. Stupidly gave it away in early 90’s, bought a brother with 100 stitches. Piece of junk. Bought another new machine, janome, i think. Piece of junk. Decided to look for a vintage machine. Found a 403A on craigslist for $75, no accessories. Cleaned and oiled it myself(belonged to seller’s mom). Found accessories online. Can’t describe what a joy it is to use. Quality stitches. Thread doesn’t break constantly. Sews on any thickness of fabric. Quiet operation. Had to buy a new rubber ring for bobbin winding, as old one was original and disintegrated when i removed it. Singer still made the part! I wonder if this is the machine my aunt used and loved. She appreciated quality.
Can you help me with Mom’s 403a Singer Sewing machine? The stitch length knob keeps jumping up, it’s out in the garage. Can it be because it’s gears are cold?
Thank you.
Louise
I have a 403a and I love it. It runs really slow and then it starts to smoke & smells bad. I “blew out the funk” and it still smokes. I have taken it to a repair shop and they just tuned it and put new felt pieces under the thread holder $79 and didn’t make any difference. What can I do? Thanks Michigan Sue