Craftsman
Front-Engine Lawn Tractor

Model # 502255640 Official Craftsman 10-hp riding lawn mower

Here are the diagrams and repair parts for Official Craftsman 502255640 10-hp riding lawn mower, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 278 parts  |

E-ring STD581075
#49

Drive system diagram

E-ring

Part #STD581075

Replaced by #812000029

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Manufacturer substitution
This part replaces STD581075. Substitute parts can look different from the original.
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This item is not returnable
$3.50
22% OFF Phone Price : $4.50
In Stock
Belt 37X50
#1

Mower deck diagram

Belt

Part #37X50

Replaced by #37X57MA

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Manufacturer substitution
This part replaces 37X50. Substitute parts can look different from the original.
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$36.81
12% OFF Phone Price : $41.81
In Stock
Wheel Tire 90599
#46

Steering system diagram

Wheel tire

Part #90599

Replaced by #092303601MA

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Manufacturer substitution
This part replaces 90599. Substitute parts can look different from the original.
$103.09
9% OFF Phone Price : $113.09
In Stock
Idler Pulley 20613
Idler pulley

Part #20613

Replaced by #420613MA

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Manufacturer substitution
This part replaces 20613. Substitute parts can look different from the original.
This item is not returnable
$23.49
18% OFF Phone Price : $28.49
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Spring 165X43
#18

Drive system diagram

Spring

Part #165X43

Replaced by #165X43MA

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Manufacturer substitution
This part replaces 165X43. Substitute parts can look different from the original.
In Stock
Sector Assembly 55041
#28

Steering system diagram

Sector assembly

Part #55041

Replaced by #56236E701MA

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Manufacturer substitution
This part replaces 55041. Substitute parts can look different from the original.
In Stock
Push-on-cap 28X23
#23

Mower deck diagram

Push-on-cap

Part #28X23

Replaced by #703948

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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
Switch 24273
Switch

Part #24273

Replaced by #5021451SM

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Manufacturer substitution
This part replaces 24273. Substitute parts can look different from the original.
This item is not returnable
In Stock
Washer 17X36Z
#13

Idler assembly diagram

Washer

Part #17X36Z

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

Bolt 6X73Z
#14

Steering system diagram

Bolt

Part #6X73Z

Replaced by #1X98MA

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Manufacturer substitution
This part replaces 6X73Z. Substitute parts can look different from the original.
This item is not returnable
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.

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

Main causes: engine overfilled with oil, leaky head gasket or sump gasket, damaged carburetor seals, cracked fuel pump, …

Main causes: damaged cutting blade, worn deck pulley, damaged mandrel pulley, loose fasteners on mower deck components…

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

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

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

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

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

Main causes: faulty battery, bad alternator…

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 the seat on a riding lawn mower

How to replace the seat on a riding lawn mower

A broken seat can keep the mower from running.…

Repair difficulty
Time required
 15 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
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

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 remove a lawn mower blade using a removal tool

How to remove a lawn mower blade using a removal tool

Learn how a blade removal tool makes replacing the blade easier and safer…

Charging a battery in a riding lawn mower video

Charging a battery in a riding lawn mower video

Learn how to use a battery charger if your mower battery is dead.…

Riding mower and tractor common questions

Riding mower and tractor common questions

You might find the answers to your questions about your riding mower or lawn tractor in this list of frequently asked qu…