Craftsman
Gas Walk-Behind Mower

Model #917372100 Official Craftsman 20" power-propelled lawn mower

Here are the diagrams and repair parts for Craftsman 917372100 20" power-propelled lawn mower, as well as links to manuals and error code tables, if available.

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Showing 10 of 107 parts

Lawn Tractor Hex Lock Nut (replaces 873800500, STD541431)#32

Main frame Diagram

Keps nut

Part #STD541431
Replaced by #596040501
?
Manufacturer substitution
This part replaces STD541431. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
Back Order
$2.16
Lawn Mower 20-in Deck Blade (replaces 129277, 134871, 145106CS, 145106MS, 145106WA, 145106X431, 146749, 146749WA, 33255, 532129277, 5321608-37, 5327009-72, 532751646, 700972, 701211WA, 751646, 850972, 850972WA)

See All Related Diagrams

Blade

Part #69229
Replaced by #145106
?
Manufacturer substitution
This part replaces 69229. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable

Get free shipping with Automatic Reorder

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$13.39 | 
13% OFF 
Phone Price: $15.39
Lawn Mower Wheel Hub Cap (replaces 5320774-00, 77400)#38

Main frame Diagram

Lawn mower hub cap

Part #77400
Replaced by #532077400
?
Manufacturer substitution
This part replaces 77400. Substitute parts can look different from the original.
BEST SELLER
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$4.19 | 
19% OFF 
Phone Price: $5.19
Lawn & Garden Equipment Washer#36

Main frame Diagram

Washer

Part #74232
Replaced by #19171912
?
Manufacturer substitution
This part replaces 74232. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
Back Order
$2.96 | 
30% OFF 
MSRP: $4.20
Lawn Mower Height Adjuster Lever Spacer#45

Main frame 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
In Stock
$3.09 | 
24% OFF 
Phone Price: $4.09
Lawn & Garden Equipment Shoulder Bolt#48

Main frame 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
In Stock
$4.19
Lawn Mower Wheel#34

Main frame Diagram

Wheel and tire assembly

Part #78890
Replaced by #33781
?
Manufacturer substitution
This part replaces 78890. Substitute parts can look different from the original.
In Stock
$13.19 | 
13% OFF 
Phone Price: $15.19
Screw#6

Main frame Diagram

Screw

Part #85436

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

E-Ring#27

Drive assembly Diagram

E-ring

Part #STD581037

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

Bolt#3

Main frame Diagram

Bolt

Part #STD523117

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.

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: engine needs tune up, dirty or clogged carburetor, damaged flywheel key
Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent
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.

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
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.

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

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