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Kenmore
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Model # 158121 Official Kenmore sewing machine head

Here are the diagrams and repair parts for Official Kenmore 158121 sewing machine head, 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 228 parts  |
Plate 4455
#21

Tension regulator diagram

Plate

Part #4455

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

Spring 110

#71

All parts diagram

Spring

Part #110

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

Washer 4066
#40

Feed regulator and zigzag parts diagram

Washer

Part #4066

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

Washer 4843
#62

Feed regulator and zigzag parts diagram

Washer

Part #4843

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

Washer 8704
#50

Unit parts diagram

Washer

Part #8704

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

Flange 9437
#32

Feed regulator and zigzag parts diagram

Flange

Part #9437

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

Sewing Machine Set Screw 39
#46

Shuttle assembly diagram

Sewing machine set screw

Part #39

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

Rocker Shaft 4614
#1

Feed regulator and zigzag parts diagram

Rocker shaft

Part #4614

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

Shift Rod 125
#65

Shuttle assembly diagram

Shift rod

Part #125

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

Pin 101
#72

Feed regulator and zigzag parts diagram

Pin

Part #101

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

Most common symptoms to help you fix your ranges

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Why can't I unlock my range's oven door?

Main causes: broken oven door lock assembly, wiring failure, electronic control board problem…

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Why doesn't my range's oven broiler work?

Main causes: broken broiler element, weak or broken broil burner igniter, control system failure, faulty temperature sen…

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Why won't my range's oven heat?

Main causes: power supply problem, control thermostat or electronic control board failure, broken element, bad burner ig…

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Why won't my range's oven bake?

Main causes: bad bake element, broken burner igniter, control system failure, blown thermal fuse, faulty temperature sen…

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How do I get rid of streaks on my range's oven window?

Main causes: food splatters, spilling food on the oven door, allowing liquid to drip through oven door vent when cleanin…

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Why is my range's oven temperature wrong?

Main causes: faulty temperature sensor, electronic control board problem, control thermostat failure, weak burner ignite…

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Why isn't my range working?

Main causes: power supply failure, blown thermal fuse, bad relay control board, damaged terminal block, wiring failure…

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Most common repair guides to help fix your ranges

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

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How to replace a range oven door switch

How to replace a range oven door switch

The oven door switch detects whether the oven door is closed and helps control the oven light. Replace the switch if it …

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Repair difficulty
Time required
 30 minutes or less
How to replace a range oven door lock assembly

How to replace a range oven door lock assembly

Oven door not locking? You can replace the lock assembly in less than 30 minutes. Here's how.…

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Repair difficulty
Time required
 15 minutes or less

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