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Craftsman
Gas Walk-Behind Mower

Model # 917378990 Official Craftsman gas walk-behind lawn mower

Here are the diagrams and repair parts for Official Craftsman 917378990 gas walk-behind 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 181 parts  |
Lawn Mower Wheel Assembly 180767
#11

Wheels/tires/bag diagram

Lawn mower wheel assembly

Part #180767

Replaced by #532180775

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Manufacturer substitution
This part replaces 180767. Substitute parts can look different from the original.
$39.98
In Stock
Handle Bolt 191574
#5

Engine/housing/handle diagram

Handle bolt

Part #191574

Replaced by #532191574

?
Manufacturer substitution
This part replaces 191574. Substitute parts can look different from the original.
BEST SELLER
$7.98 | 
11% OFF Phone Price : $8.98
In Stock
Lawn & Garden Equipment Lock Nut 73800400
#38

Wheels/tires/bag diagram

Lawn & garden equipment lock nut

Part #73800400

Replaced by #582478602

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Manufacturer substitution
This part replaces 73800400. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$2.64 | 
27% OFF Phone Price : $3.64
In Stock
Cable.mzr.60 182755
#4

Engine/housing/handle diagram

Cable.mzr.60

Part #182755

Replaced by #532183567

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Manufacturer substitution
This part replaces 182755. Substitute parts can look different from the original.
$19.98 | 
9% OFF Phone Price : $21.98
In Stock
Weed Eater Lawn & Garden Equipment Screw, 14-20 X 5/8-in 17060410
#13

Engine/housing/handle diagram

Weed eater lawn & garden equipment screw, 14-20 x 5/8-in

Part #17060410

Replaced by #817060410

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Manufacturer substitution
This part replaces 17060410. Substitute parts can look different from the original.
This item is not returnable
$6.83
In Stock
Lawn Mower Ground Drive Belt, 3/8 X 32-1/2-in (replaces 532175436) 175436
#5

Wheels/tires/bag diagram

Lawn mower ground drive belt, 3/8 x 32-1/2-in (replaces 532175436)

Part #175436

Replaced by #532175436

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Manufacturer substitution
This part replaces 175436. Substitute parts can look different from the original.

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$26.64
In Stock
Lawn & Garden Equipment Pan Head Screw 158755
#4

Wheels/tires/bag diagram

Lawn & garden equipment pan head screw

Part #158755

This item is not returnable
$4.19
In Stock
Movable Dog Clutch 183503
Movable dog clutch

Part #183503

Replaced by #532183503

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Manufacturer substitution
This part replaces 183503. Substitute parts can look different from the original.
$8.54
In Stock
Gear 183499
Gear

Part #183499

Replaced by #532183499

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Manufacturer substitution
This part replaces 183499. Substitute parts can look different from the original.
This item is not returnable
$19.98 | 
9% OFF Phone Price : $21.98
In Stock
Shift Fork 183507
Shift fork

Part #183507

Replaced by #532183507

?
Manufacturer substitution
This part replaces 183507. Substitute parts can look different from the original.
$13.69
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…

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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

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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