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Craftsman
Engine & Drivetrain

Model # 91779935 Official Craftsman 4-lead gearcase

Here are the diagrams and repair parts for Official Craftsman 91779935 4-lead gearcase, as well as links to manuals and error code tables, if available.

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Error Codes

Model diagram and schematic

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Showing 10 of 36 parts  |
Lawn & Garden Equipment Washer (replaces 532057079, 5320570-79) 57079
#12

Kit no. 79935 diagram

Lawn & garden equipment washer (replaces 532057079, 5320570-79)

Part #57079

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Lock Nut 53838
#1

Kit no. 79935 diagram

Lock nut

Part #53838

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

Retainer Ring STD582087
#27

Kit no. 79935 diagram

Retainer ring

Part #STD582087

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

Bracket 77039
#10

Kit no. 79935 diagram

Bracket

Part #77039

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

Identification Tag 84698
#34

Kit no. 79935 diagram

Identification tag

Part #84698

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

Engine Pulley 83121
#22

Kit no. 79935 diagram

Engine pulley

Part #83121

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

Adjustment Bracket 85178
#2

Kit no. 79935 diagram

Adjustment bracket

Part #85178

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

Bolt STD522512
#33

Kit no. 79935 diagram

Bolt

Part #STD522512

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

E-ring STD581050
#25

Kit no. 79935 diagram

E-ring

Part #STD581050

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

Grease 58354
#24

Kit no. 79935 diagram

Grease

Part #58354

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

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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 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 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

Effective articles & videos to help repair your ranges

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How to clean and maintain your stove

How to clean and maintain your stove

Learn how to clean and maintain your stove to keep it in top shape.…

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Oven door won't open: troubleshooting door lock problems on a range video

Oven door won't open: troubleshooting door lock problems on a range video

Troubleshoot and repair problems with your range when your oven door locks shut and you can't get it open.…

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How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

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