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Craftsman
Front-Engine Lawn Tractor

Model # 917251521 Official Craftsman tractor

Here are the diagrams and repair parts for Official Craftsman 917251521 tractor, as well as links to manuals and error code tables, if available.

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Owner’s manual
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Model diagram and schematic

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Showing 10 of 375 parts  |
Screw 17490620
Screw

Part #17490620

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

Washer 19151216
#28

Lift assembly diagram

Washer

Part #19151216

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

Lock Washer STD551143
#42

Engine diagram

Lock washer

Part #STD551143

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

Bracket 143528
#53

Engine diagram

Bracket

Part #143528

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

Steering Wheel Adapter 100711L
#21

Steering assembly diagram

Steering wheel adapter

Part #100711L

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

Lawn & Garden Equipment Screw 142920
#109

Hydro gear transaxle 218-3010 diagram

Lawn & garden equipment screw

Part #142920

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

Brake 142880
#35

Hydro gear transaxle 218-3010 diagram

Brake

Part #142880

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

Deck Assembly 145008
#1

Mower deck diagram

Deck assembly

Part #145008

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

Guide 137159
#70

Chassis and enclosures diagram

Guide

Part #137159

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

Washer 142978
#23

Hydro gear pump bul-10l-122 diagram

Washer

Part #142978

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.

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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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Why does my riding mower deck vibrate?

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

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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 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 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 is my riding mower leaking oil or gas?

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

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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 does my riding mower creep in neutral?

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

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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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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 the starter motor on a riding lawn mower

How to replace the starter motor on a riding lawn mower

If you hear the solenoid click but don’t hear the starter motor spin when you turn the key, follow these steps to replac…

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Repair difficulty
Time required
 30 minutes or less
How to rebuild a riding lawn mower carburetor

How to rebuild a riding lawn mower carburetor

Get your sputtering carburetor running smoothly in 60 minutes.…

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 60 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.…

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 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.

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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

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

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