Front-Engine Lawn Tractor

Model # 502255190 Official Craftsman 40" lawn tractor with grass catcher - 1993

Here are the diagrams and repair parts for Official Craftsman 502255190 40" lawn tractor with grass catcher - 1993, as well as links to manuals and error code tables, if available.

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502255190 Riding Mowers & Tractors
E-ring STD581075
#57

Motion drive 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
$4.51
18% OFF Phone Price : $5.51
In Stock
Key 91275
#13

Wiring diagram

Key

Part #91275

Replaced by #691959

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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
Bolt STD533107
Bolt

Part #STD533107

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

Pedal 21544
#26

Motion drive diagram

Pedal

Part #21544

Replaced by #1727261SM

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Manufacturer substitution
This part replaces 21544. Substitute parts can look different from the original.
This item is not returnable
$17.09
10% OFF Phone Price : $19.09
In Stock
Bolt 25X7
#15

Engine mount diagram

Bolt

Part #25X7

Replaced by #2828635SM

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Manufacturer substitution
This part replaces 25X7. Substitute parts can look different from the original.
This item is not returnable
$8.09
11% OFF Phone Price : $9.09
In Stock
Sensor 91031
#1

Wiring diagram

Sensor

Part #91031

Replaced by #91031SEMA

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Manufacturer substitution
This part replaces 91031. Substitute parts can look different from the original.
In Stock
Blade 40" 91871E700
#53

Mower housing diagram

Blade 40"

Part #91871E700

Replaced by #91871E701MA

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Manufacturer substitution
This part replaces 91871E700. Substitute parts can look different from the original.
In Stock
Switch 24273
#17

Wiring diagram

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
Axle Kit 91823E700
#26

Mower suspension diagram

Axle kit

Part #91823E700

Replaced by #91823SEMA

?
Manufacturer substitution
This part replaces 91823E700. Substitute parts can look different from the original.
In Stock
Guide 91754
#9

Motion drive diagram

Guide

Part #91754

Replaced by #91754MA

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Manufacturer substitution
This part replaces 91754. Substitute parts can look different from the original.
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: punctured tire or inner tube, leaky valve stem, damaged wheel rim…

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

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

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

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

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

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 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.…