Kenmore
Sewing Machine

Model # 158921 Official Kenmore sewing machine

Here are the diagrams and repair parts for Official Kenmore 158921 sewing machine, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 433 parts  |

Stud 8912
#20

Zigzag guide assembly diagram

Stud

Part #8912

The manufacturer no longer makes this part, and there's no substitute part

Screw 11090
#42

Needle plate diagram

Screw

Part #11090

The manufacturer no longer makes this part, and there's no substitute part

Rocker 10900
#43

Feed regulator assembly diagram

Rocker

Part #10900

The manufacturer no longer makes this part, and there's no substitute part

Attachment Set 25130
#1

Attachment parts diagram

Attachment set

Part #25130

The manufacturer no longer makes this part, and there's no substitute part

Spring 8384
#6

Zigzag guide assembly diagram

Spring

Part #8384

The manufacturer no longer makes this part, and there's no substitute part

Shift Rod 125
#30

Zigzag guide assembly diagram

Shift rod

Part #125

The manufacturer no longer makes this part, and there's no substitute part

Rod 11150
#41

Zigzag guide assembly diagram

Rod

Part #11150

The manufacturer no longer makes this part, and there's no substitute part

Collar 10890
#20

Feed regulator assembly diagram

Collar

Part #10890

The manufacturer no longer makes this part, and there's no substitute part

Dial 25100
#41

Bobbin winder and tension controls diagram

Dial

Part #25100

The manufacturer no longer makes this part, and there's no substitute part

Arm 24280
#18

Zigzag guide assembly diagram

Arm

Part #24280

The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your sewing machines

Choose a symptom to see related sewing machine repairs.

Main causes: faulty foot pedal, locked drive gears, wiring failure, bad drive motor…

Main causes: machine needs lubrication, internal gear failure…

Main causes: dirty shuttle race, improper thread routing, incorrect thread tension…

Main causes: dirty shuttle race, wrong thread tension, bad needle timing, damaged needle, using the wrong type of needle…

Main causes: problems with the feed dogs, setting stitch length to 0…

Main causes: disengaged clutch, broken drive belt, internal drive gear failure…

Main causes: lack of lubrication, lint buildup, worn drive belt, faulty drive motor…

Main causes: thread bunched up in the shuttle race, bad needle timing, internal drive gear failures…

Main causes: power supply failure, bad power cord, faulty On/Off switch…

Most common repair guides to help fix your sewing machines

These step-by-step repair guides will help you safely fix what’s broken on your sewing machine.

How to replace a sewing machine on/off switch

How to replace a sewing machine on/off switch

If the sewing machine is completely dead, replace the On/Off switch using these 6 steps.…

Repair difficulty
Time required
 30 minutes or less
How to replace a sewing machine drive belt

How to replace a sewing machine drive belt

You can replace a broken sewing machine drive belt in about 15 minutes. …

Repair difficulty
Time required
 15 minutes or less
How to replace a sewing machine drive motor

How to replace a sewing machine drive motor

If the drive motor on your sewing machine runs roughly or doesn't run at all, you can replace it in about 30 minutes usi…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your sewing machines

Use the advice and tips in these articles and videos to get the most out of your sewing machine.

How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

Learn how to use a multimeter to check for wiring problems in an appliance that's not working…