Craftsman
Gas Walk-Behind Mower

Model # 91760639 Official Craftsman sickle bar lawn mower

Here are the diagrams and repair parts for Official Craftsman 91760639 sickle bar lawn mower, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 140 parts  |

Lock Washer 10040600
#47

Cutter bar diagram

Lock washer

Part #10040600

Replaced by #596238701

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Manufacturer substitution
This part replaces 10040600. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.31
16% OFF Phone Price : $6.31
In Stock
Needle Brg 4895H
#6

Cutter bar diagram

Needle brg

Part #4895H

Replaced by #532004895

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Manufacturer substitution
This part replaces 4895H. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$13.31
13% OFF Phone Price : $15.31
In Stock
Lock Washer 10030500
#50

Main frame diagram

Lock washer

Part #10030500

Replaced by #596238801

?
Manufacturer substitution
This part replaces 10030500. Substitute parts can look different from the original.
This item is not returnable
In Stock
Washer 19111116
#40

Main frame diagram

Washer

Part #19111116

Replaced by #596204101

?
Manufacturer substitution
This part replaces 19111116. Substitute parts can look different from the original.
This item is not returnable
In Stock
Cap Screw 04760512
#54K

Main frame diagram

Cap screw

Part #04760512

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

Washer 19141614
Washer

Part #19141614

Replaced by #596433701

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Manufacturer substitution
This part replaces 19141614. Substitute parts can look different from the original.
This item is not returnable
In Stock
Rivet 5297H
#54B

Main frame diagram

Rivet

Part #5297H

Replaced by #532004929

?
Manufacturer substitution
This part replaces 5297H. Substitute parts can look different from the original.
In Stock
Washer 19212113
Washer

Part #19212113

Replaced by #596320001

?
Manufacturer substitution
This part replaces 19212113. Substitute parts can look different from the original.
This item is not returnable
In Stock
Washer 19121610
#44

Cutter bar diagram

Washer

Part #19121610

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

Washer 09141614
#41

Main frame diagram

Washer

Part #09141614

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

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope.…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower wheel

How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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.…

Types of walk-behind mower blades video

Types of walk-behind mower blades video

Learn about the different kinds of mower blades and how to maintain them.…