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Model # 120490 Official Kenmore sewing machine head

Here are the diagrams and repair parts for Official Kenmore 120490 sewing machine head, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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Showing 10 of 241 parts  |

Pointer 3338
#29

Main shaft crank assembly diagram

Pointer

Part #3338

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

Screwdriver 3472

#NI

All parts diagram

Screwdriver

Part #3472

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

Release Pin 3162
#117

Bobbin and thread tension assembly diagram

Release pin

Part #3162

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

Washer 3458
#124

Bobbin and thread tension assembly diagram

Washer

Part #3458

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

Idler Wheel 3219
#42

Main shaft crank assembly diagram

Idler wheel

Part #3219

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

Spring 3327-S
#70A

Main shaft crank assembly diagram

Spring

Part #3327-S

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

Thrd Tension 3498
#159

Bobbin and thread tension assembly diagram

Thrd tension

Part #3498

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

Collar 3212
#164

Lift and shuttle shaft assembly diagram

Collar

Part #3212

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

Claw Bushing 3613-S
#182

Lift and shuttle shaft assembly diagram

Claw bushing

Part #3613-S

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

Spring 3308
#147

Bobbin and thread tension assembly diagram

Spring

Part #3308

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

Most common symptoms to help you fix your dryers

Choose a symptom to see related dryer repairs.

Main causes: bad drum support roller, damaged idler pulley, broken blower fan blade, worn drum glide bearing, bad drive …

Main causes: bad gas valve coils, broken heating element, tripped safety thermostat or fuse, bad operating thermostat, c…

Main causes: damaged door strike, worn door catch…

Main causes: bad timer or electronic control board, door switch failure…

Main causes: lack of electrical power, bad power cord, wiring failure, bad control board, blown thermal fuse, bad door s…

Main causes: clogged exhaust vent, bad motor relay, loose dryer door catch, bad door switch, control system failure, fau…

Main causes: clogged exhaust system, heating system failure, deposits on moisture sensor, control system failure…

Main causes: door switch failure, lack of power, broken belt, blown thermal fuse, bad drive motor, control system failur…

Most common repair guides to help fix your dryers

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

How to replace a dryer drum support roller

How to replace a dryer drum support roller

If your dryer thumps or squeals, replace the drum support roller to restore quiet to your home.…

Repair difficulty
Time required
 90 minutes or less
How to replace a dryer thermistor

How to replace a dryer thermistor

The thermistor senses the air temperature in the dryer. If your dryer overheats or doesn't heat at all, the thermistor …

Repair difficulty
Time required
 30 minutes or less
How to replace a dryer door switch

How to replace a dryer door switch

The dryer won't start if the door switch isn't working correctly. You can install a replacement dryer door switch in les…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your dryers

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

How to use your clothes dryer efficiently

How to use your clothes dryer efficiently

Get expert tips on using your dryer efficiently to save energy.…

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.…