Craftsman
Front-Engine Lawn Tractor

Model # 502251341 Official Craftsman 36" rotary lawn mower

Here are the diagrams and repair parts for Official Craftsman 502251341 36" rotary lawn mower, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • 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”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 78 parts  |

Bolt STD553107
#39

Mower housing diagram

Bolt

Part #STD553107

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

Idler Pulley 20613
#12

Mower housing diagram

Idler pulley

Part #20613

Replaced by #420613MA

?
Manufacturer substitution
This part replaces 20613. Substitute parts can look different from the original.
This item is not returnable
$25.18
19% OFF Phone Price : $31.18
In Stock
Push-on-cap 28X23
#43

Mower housing diagram

Push-on-cap

Part #28X23

Replaced by #703948

?
Manufacturer substitution
This part replaces 28X23. Substitute parts can look different from the original.
This item is not returnable
$7.29
12% OFF Phone Price : $8.29
In Stock
Housing 20551
#30

Mower housing diagram

Housing

Part #20551

Replaced by #492574MA

?
Manufacturer substitution
This part replaces 20551. Substitute parts can look different from the original.
$68.99
8% OFF Phone Price : $74.99
In Stock
Hex Bolt 1X38
#46

Mower housing diagram

Hex bolt

Part #1X38

Replaced by #1X38MA

?
Manufacturer substitution
This part replaces 1X38. Substitute parts can look different from the original.
In Stock
Pulley 21409
#50

Mower housing diagram

Pulley

Part #21409

Replaced by #421409MA

?
Manufacturer substitution
This part replaces 21409. Substitute parts can look different from the original.
This item is not returnable
$25.18
19% OFF Phone Price : $31.18
In Stock
Torsion Spring 21189
#41

Mower housing diagram

Torsion spring

Part #21189

Replaced by #166X4MA

?
Manufacturer substitution
This part replaces 21189. Substitute parts can look different from the original.
In Stock
Drive Belt 21649
#13

Mower housing diagram

Drive belt

Part #21649

Replaced by #37X12MA

?
Manufacturer substitution
This part replaces 21649. Substitute parts can look different from the original.

Get free shipping with Automatic Reorder

In Stock
Hairpin Pin 20692
#2

Mower housing diagram

Hairpin pin

Part #20692

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

Clevis Adjustment 21915Z
#54

Mower housing diagram

Clevis adjustment

Part #21915Z

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

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

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

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

Main causes: faulty battery, bad alternator…

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

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

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

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

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

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

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

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.

How to replace a riding lawn mower rear tire

How to replace a riding lawn mower rear tire

Your mower can’t run on a damaged rear tire. Here’s how to install a new one.…

Repair difficulty
Time required
 60 minutes or less
How to replace a riding lawn mower blade

How to replace a riding lawn mower blade

If a blade on your mower is dull or bent, replace it following the steps in this repair guide.…

Repair difficulty
Time required
 30 minutes or less
How to replace a riding lawn mower fuel filter

How to replace a riding lawn mower fuel filter

Help your mower run better by replacing the fuel filter during your riding mower's annual tune-up.…

Repair difficulty
Time required
 15 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.

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.…

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.…

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.…