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Craftsman
Gas Walk-Behind Mower

Model # 917378300 Official Craftsman lawn mower

Here are the diagrams and repair parts for Official Craftsman 917378300 lawn mower, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 97 parts  |
Drive Pawl 404845
#31

Drive control/wheels diagram

Drive pawl

Part #404845

Replaced by #532404845

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Manufacturer substitution
This part replaces 404845. Substitute parts can look different from the original.
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$6.64 | 
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Nut 132004
#99

Engine/housing/handle diagram

Nut

Part #132004

Replaced by #582478602

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Manufacturer substitution
This part replaces 132004. Substitute parts can look different from the original.
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$2.64 | 
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Bolt 17000510
Bolt

Part #17000510

Replaced by #817000510

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Manufacturer substitution
This part replaces 17000510. Substitute parts can look different from the original.
BEST SELLER
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Handle Knob 182398
#6

Engine/housing/handle diagram

Handle knob

Part #182398

Replaced by #532182398

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Manufacturer substitution
This part replaces 182398. Substitute parts can look different from the original.
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Nut.flange.5 155377
#57

Engine/housing/handle diagram

Nut.flange.5

Part #155377

Replaced by #596039201

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Manufacturer substitution
This part replaces 155377. Substitute parts can look different from the original.
This item is not returnable
$5.11
In Stock
Lawn Mower Carriage Bolt 586212501
#28

Engine/housing/handle diagram

Lawn mower carriage bolt

Part #586212501

This item is not returnable
$3.98 | 
20% OFF Phone Price : $4.98
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Poulan Lawn Mower Transmission Assembly (replaces 434564) 581680801
#13

Drive control/wheels diagram

Poulan lawn mower transmission assembly (replaces 434564)

Part #581680801

$111.41 | 
10% OFF Phone Price : $123.41
In Stock
Drive Control Assembly With Cable 501408103
#1

Drive control/wheels diagram

Drive control assembly with cable

Part #501408103

Replaced by #589818808

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Manufacturer substitution
This part replaces 501408103. Substitute parts can look different from the original.
$40.89 | 
13% OFF Phone Price : $46.89
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Rod.hinge.21 175650
#45

Engine/housing/handle diagram

Rod.hinge.21

Part #175650

Replaced by #532175650

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Manufacturer substitution
This part replaces 175650. Substitute parts can look different from the original.
This item is not returnable
$6.64 | 
13% OFF Phone Price : $7.64
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Poulan Lawn Mower Transmission Tension Spring 581351301
#55

Drive control/wheels diagram

Poulan lawn mower transmission tension spring

Part #581351301

This item is not returnable
$6.64 | 
13% OFF Phone Price : $7.64
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…

Read more

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…

Read more

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.…

Read more
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

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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