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Craftsman
Gas Walk-Behind Mower

Model # 917921602 Official Craftsman 20" rotary lawn mower

Here are the diagrams and repair parts for Official Craftsman 917921602 20" rotary 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 61 parts  |
Handle Knob 63688
#8

Replacement parts diagram

Handle knob

Part #63688

Replaced by #532183724

?
Manufacturer substitution
This part replaces 63688. Substitute parts can look different from the original.
This item is not returnable
$11.98
| 
14% OFF Phone Price : $13.98
In Stock
Decal 78850
#24

Replacement parts diagram

Decal

Part #78850

Replaced by #539913010

?
Manufacturer substitution
This part replaces 78850. Substitute parts can look different from the original.
This item is not returnable
$6.83
In Stock
Shoulder Bolt 84921
#35

Replacement parts diagram

Shoulder bolt

Part #84921

Replaced by #532174719

?
Manufacturer substitution
This part replaces 84921. Substitute parts can look different from the original.
This item is not returnable
$13.69
In Stock
Washer 61537
#36

Replacement parts diagram

Washer

Part #61537

Replaced by #596134901

?
Manufacturer substitution
This part replaces 61537. Substitute parts can look different from the original.
This item is not returnable
$3.98
| 
20% OFF Phone Price : $4.98
In Stock
Hairpin 51793
#13

Replacement parts diagram

Hairpin

Part #51793

Replaced by #532051793

?
Manufacturer substitution
This part replaces 51793. Substitute parts can look different from the original.
This item is not returnable
$7.98
| 
11% OFF Phone Price : $8.98
In Stock
Washer 62335
#34

Replacement parts diagram

Washer

Part #62335

Replaced by #532062335

?
Manufacturer substitution
This part replaces 62335. Substitute parts can look different from the original.
$13.69
In Stock
Spacer 84920
#33

Replacement parts diagram

Spacer

Part #84920

Replaced by #532401629

?
Manufacturer substitution
This part replaces 84920. Substitute parts can look different from the original.
This item is not returnable
$5.31
| 
16% OFF Phone Price : $6.31
In Stock
Axle Arm Assembly 84878
#30

Replacement parts diagram

Axle arm assembly

Part #84878

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

Handle 84261
#1

Replacement parts diagram

Handle

Part #84261

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

Lawn & Garden Equipment Screw 36953
#12

Replacement parts diagram

Lawn & garden equipment screw

Part #36953

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.

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Why does my lawn mower vibrate a lot?

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

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Why does my lawn mower cut unevenly?

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

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Why does my lawn mower run rough?

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

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Why won't my lawn mower move?

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

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Why won't my lawn mower start?

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

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Why does my lawn mower stall?

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

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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.

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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....

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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....

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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....

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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.

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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....

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Top questions about Sears and Sears PartsDirect

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Types of walk-behind mower blades video

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

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