Craftsman
Lawn & Garden Engine

Model # 143546122 Official Craftsman 4-cycle engine

Here are the diagrams and repair parts for Official Craftsman 143546122 4-cycle engine, 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 159 parts  |

/gvnr Clamp 31335
#165

Basic engine diagram

/gvnr clamp

Part #31335

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

Screw 650494
#74

Basic engine diagram

Screw

Part #650494

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

Spring 27114
#8

Carburetor diagram

Spring

Part #27114

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

Retain Ring 27888
#16

Basic engine diagram

Retain ring

Part #27888

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

Flat Washer 650490
#71

Basic engine diagram

Flat washer

Part #650490

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

Shutoff Valv 29683
#117

Basic engine diagram

Shutoff valv

Part #29683

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

Spring 31667
#92

Basic engine diagram

Spring

Part #31667

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

Lever 31709
#52

Basic engine diagram

Lever

Part #31709

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

Exhast Valve 31469
#6

Basic engine diagram

Exhast valve

Part #31469

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

Valve 31467
#5

Basic engine diagram

Valve

Part #31467

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

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Repair guides for gas walk-behind mowers

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

How to rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope.…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower wheel

How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your lawn & garden engines

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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.…

What are the main components of a lawn mower?

What are the main components of a lawn mower?

Learn about the main parts of a lawn mower and when to replace parts.…