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Craftsman
Gas Walk-Behind Mower

Model # 917388391 Official Craftsman 21" 6-hp multi-cut rotary lawn mower

Here are the diagrams and repair parts for Official Craftsman 917388391 21" 6-hp multi-cut rotary lawn mower, as well as links to manuals and error code tables, if available.

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Owner’s manual
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Model diagram and schematic

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ALL PARTS
Showing 10 of 203 parts  |
Lock Nut 83923
#39

Rotary lawn mower diagram

Lock nut

Part #83923

Replaced by #532409149

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Manufacturer substitution
This part replaces 83923. 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
Handle Knob 136376
#14

Rotary lawn mower diagram

Handle knob

Part #136376

Replaced by #532185577

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Manufacturer substitution
This part replaces 136376. Substitute parts can look different from the original.
BEST SELLER
$10.64 | 
16% OFF Phone Price : $12.64
In Stock
Nut Lck 5/16 73990500
#51

Rotary lawn mower diagram

Nut lck 5/16

Part #73990500

Replaced by #596040501

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Manufacturer substitution
This part replaces 73990500. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$5.11
In Stock
Rod.hinge.co 147286
#16

Rotary lawn mower diagram

Rod.hinge.co

Part #147286

Replaced by #532147286

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Manufacturer substitution
This part replaces 147286. Substitute parts can look different from the original.
This item is not returnable
$9.31 | 
10% OFF Phone Price : $10.31
In Stock
Lawn Mower Wheel 151162
#37

Rotary lawn mower diagram

Lawn mower wheel

Part #151162

Replaced by #582976901

?
Manufacturer substitution
This part replaces 151162. Substitute parts can look different from the original.
This item is not returnable
$27.98 | 
18% OFF Phone Price : $33.98
In Stock
Bolt 74780512
#8

Rotary lawn mower diagram

Bolt

Part #74780512

Replaced by #596030501

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Manufacturer substitution
This part replaces 74780512. Substitute parts can look different from the original.
This item is not returnable
$6.83
In Stock
Lawn & Garden Equipment Washer (replaces 532851074, 5328510-74) 851074
#55

Rotary lawn mower diagram

Lawn & garden equipment washer (replaces 532851074, 5328510-74)

Part #851074

Replaced by #532851074

?
Manufacturer substitution
This part replaces 851074. Substitute parts can look different from the original.
This item is not returnable
$6.83
In Stock
Lawn & Garden Equipment Screw 851084
#53

Rotary lawn mower diagram

Lawn & garden equipment screw

Part #851084

Replaced by #532851084

?
Manufacturer substitution
This part replaces 851084. Substitute parts can look different from the original.
This item is not returnable
$6.83
In Stock
Lawn Mower Handle 161105X479
#3

Rotary lawn mower diagram

Lawn mower handle

Part #161105X479

Replaced by #583716401

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Manufacturer substitution
This part replaces 161105X479. Substitute parts can look different from the original.
$33.31
In Stock
Skirt 165858
#21

Rotary lawn mower diagram

Skirt

Part #165858

Replaced by #532413160

?
Manufacturer substitution
This part replaces 165858. Substitute parts can look different from the original.
$20.54
In Stock

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…

Read more

Why does my lawn mower run rough?

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

Read more

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.…

Read more
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.…

Read more
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

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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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.…

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