Craftsman
Gas Walk-Behind Mower

Model #917388910 Official Craftsman gas walk-behind lawn mower

Here are the diagrams and repair parts for Craftsman 917388910 gas walk-behind 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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For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

Showing 10 of 213 parts

Lawn Mower Lock Nut, 3/8-in (replaces 409149, 532409148)#39

Engine/housing/handle/bag Diagram

Lock nut

Part #83923
Replaced by #532409149
?
Manufacturer substitution
This part replaces 83923. Substitute parts can look different from the original.
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Lawn & Garden Equipment Engine Oil, SAE 30, 20-oz (replaces 33000)

#(NI)

All parts Diagram

Lawn & garden equipment engine oil, 20-oz

Part #33000
Replaced by #40020
?
Manufacturer substitution
This part replaces 33000. Substitute parts can look different from the original.
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MSRP: $5.49
Lawn Mower Blade (replaces 594893001)#56

Engine/housing/handle/bag Diagram

Belt, 21-in

Part #175064
Replaced by #532406712
?
Manufacturer substitution
This part replaces 175064. Substitute parts can look different from the original.
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Lawn Mower Grass Bag#67

Engine/housing/handle/bag Diagram

Gbag.250f4.w

Part #185525
Replaced by #410666
?
Manufacturer substitution
This part replaces 185525. Substitute parts can look different from the original.
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Lawn Mower Bolt (replaces 191574)#6

Engine/housing/handle/bag Diagram

Handle bolt

Part #131959
Replaced by #532191574
?
Manufacturer substitution
This part replaces 131959. Substitute parts can look different from the original.
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Lawn & Garden Equipment Washer (replaces 532851074, 5328510-74)#55

Engine/housing/handle/bag Diagram

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

Part #851074
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Lawn Mower Deflector Shield (replaces 532165760, 589482401)#31

Engine/housing/handle/bag Diagram

Discharge guard

Part #165760
Replaced by #589482402
?
Manufacturer substitution
This part replaces 165760. Substitute parts can look different from the original.
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Lawn & Garden Equipment Lock Nut#71

Engine/housing/handle/bag Diagram

Nut

Part #132004
Replaced by #595086601
?
Manufacturer substitution
This part replaces 132004. Substitute parts can look different from the original.
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Lawn & Garden Equipment Engine Fuel Stabilizer, 12-oz (replaces 33500)

#NI04

All parts Diagram

Fuel stabilizer

Part #33500
Replaced by #95012
?
Manufacturer substitution
This part replaces 33500. Substitute parts can look different from the original.
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Lawn Mower O-Ring (replaces 188152, 532197480)#35

Engine/housing/handle/bag Diagram

O-ring

Part #188152
Replaced by #197480
?
Manufacturer substitution
This part replaces 188152. Substitute parts can look different from the original.
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Symptoms for gas walk-behind mowers

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

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade
Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up
Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent
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, bad ignition coil

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.

March 1, 2016
By Lyle Weischwill
How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cracked.

Repair difficulty
Time required
 15 minutes or less
March 1, 2016
By Lyle Weischwill
How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged.

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to replace this tiny but essential part.

Repair difficulty
Time required
 45 minutes or less

Articles and videos common to all walk-behind mowers

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

February 11, 2023

Top 10 electric lawn and garden tools for 2023

By Lyle Weischwill

Learn about the top 10 must-have electric lawn & garden tools for 2023

August 30, 2022

How to enjoy all the online benefits we offer on our Sears PartsDirect website

By Lyle Weischwill

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.

August 11, 2022

Tapping into a new feature in the Search Bar on Sears PartsDirect

By Lyle Weischwill

Learn about a new feature added to the Search Bar on Sears PartsDirect