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Kenmore
Mechanical Sewing Machine

Model # 3851254180 Official Kenmore sewing machine

Here are the diagrams and repair parts for Official Kenmore 3851254180 sewing machine, as well as links to manuals and error code tables, if available.

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Owner’s manual
Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 245 parts  |
Needle Bar Crank 680504005
#27

Needle bar assembly diagram

Needle bar crank

Part #680504005

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

Sewing Machine Thread Guide 649015007
#33

Thread tension assembly diagram

Sewing machine thread guide

Part #649015007

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

Bushing 671021005
#16

Upper shaft assembly diagram

Bushing

Part #671021005

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

Sewing Machine Set Screw 102100000
#8

Shuttle race assembly diagram

Sewing machine set screw

Part #102100000

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

Bushing 649014006
#6

Thread tension assembly diagram

Bushing

Part #649014006

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

Set Screw 000077503
#31

Bobbin winder unit and top cover diagram

Set screw

Part #000077503

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

Support Assembly 730606006
#1

Needle bar assembly diagram

Support assembly

Part #730606006

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

Lever 649008007
#23

Bobbin winder unit and top cover diagram

Lever

Part #649008007

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

Fastener 000123206
#9

Thread tension assembly diagram

Fastener

Part #000123206

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

Tension Unit 649502006
#20

Thread tension assembly diagram

Tension unit

Part #649502006

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.

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Why doesn't my sewing machine motor run?

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

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Why does my sewing machine make a knocking sound?

Main causes: machine needs lubrication, internal gear failure…

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Why does the bobbin thread break in my sewing machine?

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

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Why is my sewing machine skipping stitches?

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

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Why won't fabric move through my sewing machine?

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

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Why won't my sewing machine needle move?

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

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Why is my sewing machine running sluggishly?

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

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Why does my sewing machine lock up?

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

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Why won't my sewing machine turn on?

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

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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.

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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.…

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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. …

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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…

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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.

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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.…

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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.…

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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…

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