Singer

Model 15-91 (potted motor)

Name: Singer Model 15-91 (potted motor)
Brand: Singer

Model number: 15-91

Retired / discontinued

About the Singer Model 15-91 (potted motor)

Introduced around 1938, the Singer Model 15-91 (potted motor) is a sewing machine. It has been discontinued and is no longer manufactured. An official manual is available for this model.

Model information

Brand: Singer
Model: Model 15-91 (potted motor)
Model number: 15-91
Type: Sewing machine
Status: Retired / discontinued

Manual

View official manual

Sources

What to check before buying a used Singer Model 15-91 (potted motor)

This sewing machine was introduced around 1938.
The model is discontinued, so parts availability and servicing are the main risks.
Ask for a test stitch on scrap fabric — the stitch should be even with no skipped stitches or looping underneath.
Run through all stitch patterns and check that the machine switches between them without jamming.
Inspect the bobbin case and hook for rust or thread nests, and make sure the bobbin winder works.
Check the feed dogs, presser foot and needle plate for wear or burrs that can snag fabric.
Turn the handwheel by hand: it should move smoothly with no grinding or tight spots.
Confirm the foot pedal, power cord and (if fitted) the hard case are included — replacements are not always available.

Part of the Singer Model 15 series.

Bobbin

Bobbin class: Class 15
Bobbin size: 20.3 × 11.7 mm
Bobbin material: plastic

Used price guide

$13 – $122

Originally sold for $150. Based on recent completed sales. Second-hand prices vary with condition, accessories and location.

Owner rating

4.9 / 5 based on 21 owner reviews (PatternReview; https://sewing.patternreview.com/SewingMachine/880)

Frequently asked questions

Is the Singer Model 15-91 (potted motor) still in production?

No. The Singer Model 15-91 (potted motor) has been discontinued and is no longer manufactured.

What is the model number of the Model 15-91 (potted motor)?

The model number is 15-91. It is usually printed on a plate or label on the machine.

Where can I find the Singer Model 15-91 (potted motor) manual?

An official manual is available — see the Manual section on this page.

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