Craftsman
Lawn & Garden Engine

Model # 143164012 Official Craftsman 4-cycle engine

Here are the diagrams and repair parts for Official Craftsman 143164012 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 179 parts  |

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.
In Stock
Primer Bulb 32183
#122

Basic engine diagram

Primer bulb

Part #32183

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

Element 31410
#54

Basic engine diagram

Element

Part #31410

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

Primer Assembly 32182
#103

Basic engine diagram

Primer assembly

Part #32182

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

Primer Body 32184
#123

Basic engine diagram

Primer body

Part #32184

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

Plug 30572
#28

Basic engine diagram

Plug

Part #30572

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

Lawn & Garden Equipment Engine Carburetor O-ring 630740
#13

Replacement parts diagram

Lawn & garden equipment engine carburetor o-ring

Part #630740

This item is not returnable
$3.64
22% OFF Phone Price : $4.64
In Stock
Spring 31672
#9

Basic engine diagram

Spring

Part #31672

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

Governor Gear Assembly 30591
#33

Basic engine diagram

Governor gear assembly

Part #30591

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

/intke Valve 29314A
#5

Basic engine diagram

/intke valve

Part #29314A

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

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

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

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

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

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

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 replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

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

How to replace a lawn mower drive cable

The drive cable engages the transmission to spin the drive wheels and move the mower across the grass. Replace the drive…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower starter rope

How to replace a lawn mower starter rope

These step-by-step instructions show how to replace a broken starter pull rope on a walk-behind lawn mower.…

Repair difficulty
Time required
 30 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.…