Kenmore
Mechanical Sewing Machine

Model # 3851278180 Official Kenmore sewing machine

Here are the diagrams and repair parts for Official Kenmore 3851278180 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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Showing 10 of 241 parts  |

Kenmore Elite Eccentric Pin 678084007
#17

Needle bar assembly diagram

Kenmore elite eccentric pin

Part #678084007

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

Sewing Machine Shuttle Hook 532096007
#28

Shuttle assembly diagram

Sewing machine shuttle hook

Part #532096007

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

Feed Regulator Spring 670100006
#32

Feed regulator assembly diagram

Feed regulator spring

Part #670100006

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

Adjustment Screw 735074004
#26

Feed regulator assembly diagram

Adjustment screw

Part #735074004

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

Spring 730024004
#6

Needle bar assembly diagram

Spring

Part #730024004

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

Sewing Machine Screwdriver 820832005
#6

Attachment parts diagram

Sewing machine screwdriver

Part #820832005

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

Bracket 735127003
#7

Motor assembly diagram

Bracket

Part #735127003

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

Janome Sewing Machine Lint Brush 802424004
#3

Attachment parts diagram

Janome sewing machine lint brush

Part #802424004

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

Sewing Machine Screw 647135008
#22

Needle bar assembly diagram

Sewing machine screw

Part #647135008

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

Sewing Machine Shuttle Driver Spring 670286007
#25

Shuttle assembly diagram

Sewing machine shuttle driver spring

Part #670286007

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…