Lawn & Garden Engine

Model # 143654102 Official Craftsman 4-cycle engine

Here are the diagrams and repair parts for Official Craftsman 143654102 4-cycle engine, as well as links to manuals and error code tables, if available.

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143654102 4-Cycle Engine
Generac Lawn & Garden Equipment Engine Fuel Line (replaces 14306, 34357) 29774
#118

Replacement parts diagram

Generac lawn & garden equipment engine fuel line (replaces 14306, 34357)

Part #29774

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Troybilt Lawn & Garden Equipment Engine Fuel Line Clamp 26460
#119

Replacement parts diagram

Troybilt lawn & garden equipment engine fuel line clamp

Part #26460

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Primer Line 32180A
#128

Replacement parts diagram

Primer line

Part #32180A

Replaced by #32180C

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Manufacturer substitution
This part replaces 32180A. Substitute parts can look different from the original.
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Repair Kit 630974
#25

Replacement parts diagram

Repair kit

Part #630974

Replaced by #631893A

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Manufacturer substitution
This part replaces 630974. Substitute parts can look different from the original.
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Generac Lawn & Garden Equipment Engine Breather Filter 31410
#40

Replacement parts diagram

Generac lawn & garden equipment engine breather filter

Part #31410

This item is not returnable
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Breather Gasket 27272
#77

Replacement parts diagram

Breather gasket

Part #27272

Replaced by #27272A

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Manufacturer substitution
This part replaces 27272. Substitute parts can look different from the original.
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Lauson Lawn & Garden Equipment Engine Ignition Coil (replaces 29632, 30546, 30560) 30560A
#13

Magneto diagram

Lauson lawn & garden equipment engine ignition coil (replaces 29632, 30546, 30560)

Part #30560A

$47.09
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Lawn & Garden Equipment Engine Screw 28942
#92

Replacement parts diagram

Lawn & garden equipment engine screw

Part #28942

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$2.49
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Primer Body 32184
#127

Replacement parts diagram

Primer body

Part #32184

Replaced by #570629B

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Manufacturer substitution
This part replaces 32184. Substitute parts can look different from the original.
This item is not returnable
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Primer Assembly 32182
#125

Replacement parts diagram

Primer assembly

Part #32182

Replaced by #570629B

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Manufacturer substitution
This part replaces 32182. Substitute parts can look different from the original.
This item is not returnable
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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.…