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Craftsman
Front-Engine Lawn Tractor

Model # 502254120 Official Craftsman riding lawn mower

Here are the diagrams and repair parts for Official Craftsman 502254120 riding lawn mower, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

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.

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Model diagram and schematic

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Showing 10 of 276 parts  |
Bolt STD533107
Bolt

Part #STD533107

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

Key 91275
#4

Pictorial wiring diagram diagram

Key

Part #91275

Replaced by #691959

?
Manufacturer substitution
This part replaces 91275. Substitute parts can look different from the original.
This item is not returnable
$11.16 | 
15% OFF Phone Price : $13.16
In Stock
Idler Pulley 91178
Idler pulley

Part #91178

Replaced by #420613MA

?
Manufacturer substitution
This part replaces 91178. Substitute parts can look different from the original.
This item is not returnable
$25.18 | 
19% OFF Phone Price : $31.18
In Stock
Switch S91031
#13

Pictorial wiring diagram diagram

Switch

Part #S91031

Replaced by #91031SEMA

?
Manufacturer substitution
This part replaces S91031. Substitute parts can look different from the original.
$46.00
In Stock
Sector Assembly 55746
#19

Steering system diagram

Sector assembly

Part #55746

Replaced by #56236E701MA

?
Manufacturer substitution
This part replaces 55746. Substitute parts can look different from the original.
$180.01 | 
6% OFF Phone Price : $192.01
In Stock
Spring 166X4
#29

Blade housing diagram

Spring

Part #166X4

Replaced by #166X4MA

?
Manufacturer substitution
This part replaces 166X4. Substitute parts can look different from the original.
$11.80
In Stock
Washer 18X33
#3

Blade housing diagram

Washer

Part #18X33

Replaced by #18X33MA

?
Manufacturer substitution
This part replaces 18X33. Substitute parts can look different from the original.
This item is not returnable
$7.34
In Stock
Washer 10851Z
#79

Drive system diagram

Washer

Part #10851Z

Replaced by #10851ZMA

?
Manufacturer substitution
This part replaces 10851Z. Substitute parts can look different from the original.
$9.97
In Stock
Bolt 9X29
#12

Body and chassis diagram

Bolt

Part #9X29

Replaced by #9X29MA

?
Manufacturer substitution
This part replaces 9X29. Substitute parts can look different from the original.
$8.03
In Stock
Spindle 55003
#15

Steering system diagram

Spindle

Part #55003

Replaced by #55003MA

?
Manufacturer substitution
This part replaces 55003. Substitute parts can look different from the original.
$8.66
In Stock

Most common symptoms to help you fix your riding mowers & tractors

Choose a symptom to see related riding mower and lawn tractor repairs.

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Why won't my riding mower cut grass?

Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged ma…

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How do I charge a dead battery on my riding mower?

Main causes: faulty battery, bad alternator…

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How do I fix a flat tire on my riding mower?

Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim…

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Why won't my riding mower start?

Main causes: dead battery, stale fuel, bad starter solenoid, ignition system problem, bad ignition interlock switch, clo…

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Why is the steering loose on my riding mower?

Main causes: damaged tie rods, bent or worn wheel spindle, worn front axle, damaged sector gear assembly…

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Why does my riding mower creep in neutral?

Main causes: shift lever needs adjustment, neutral control needs adjustment…

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Why does my riding mower run rough or misfire?

Main causes: clogged carburetor, damaged flywheel key, dirty spark plug, stale fuel, improper valve lash, engine needs a…

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Why won't my riding mower move?

Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, …

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Why is my riding mower not cutting evenly?

Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tun…

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Most common repair guides to help fix your riding mowers & tractors

These step-by-step repair guides will help you safely fix what’s broken on your riding mower or lawn tractor.

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How to replace a mandrel assembly on a riding lawn mower

How to replace a mandrel assembly on a riding lawn mower

Replace the mandrel assembly if the blade shaft vibrates or doesn't spin.…

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Repair difficulty
Time required
 30 minutes or less
How to replace the flywheel key on a riding lawn mower

How to replace the flywheel key on a riding lawn mower

If the engine won't restart after hitting a stump or rock, the problem could be a sheared flywheel key. Follow these ste…

Read more
Repair difficulty
Time required
 60 minutes or less
How to replace a riding lawn mower ignition coil

How to replace a riding lawn mower ignition coil

If you're not getting spark from a good spark plug, the problem could be the ignition coil. Follow these step-by-step in…

Read more
Repair difficulty
Time required
 30 minutes or less

Effective articles & videos to help repair your riding mowers & tractors

Use the advice and tips in these articles and videos to get the most out of your riding mower or lawn tractor.

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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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Riding lawn mower engine clicks but doesn't turn over video

Riding lawn mower engine clicks but doesn't turn over video

Check the starter solenoid, starter motor, wiring, battery and engine.…

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