Craftsman
Lawn & Garden Engine

Model # 143163022 Official Craftsman 4-cycle engine

Here are the diagrams and repair parts for Official Craftsman 143163022 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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ALL PARTS
Showing 10 of 185 parts  |

Fuel Line 29774
#114

Basic engine diagram

Fuel line

Part #29774

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

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

Primer Body 32184
#123

Basic engine diagram

Primer body

Part #32184

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

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
23% OFF MSRP : $4.70
In Stock
Lawn & Garden Equipment Engine Carburetor Diaphragm 630978
#22

Replacement parts diagram

Lawn & garden equipment engine carburetor diaphragm

Part #630978

This item is not returnable
$6.79
13% OFF Phone Price : $7.79
In Stock
Pump Assembly 29914
#23

Basic engine diagram

Pump assembly

Part #29914

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

Lawn & Garden Equipment Engine Welch Plug 630748
#15

Replacement parts diagram

Lawn & garden equipment engine welch plug

Part #630748

This item is not returnable
In Stock

Symptoms for gas line trimmers

Choose a symptom to see related grass line trimmer repairs.

Main causes: stale fuel, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings…

Main causes: stale fuel, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carbure…

Main causes: cracked fuel lines, bad carburetor seals, leaky fuel tank cap, damaged fuel tank…

Repair guides for gas line trimmers

These step-by-step repair guides will help you safely fix what’s broken on your grass line trimmer.

How to rebuild a line trimmer carburetor

How to rebuild a line trimmer carburetor

If the line trimmer engine won't start even though there's fuel in the tank, the carburetor could be the problem. Follow…

Repair difficulty
Time required
 15 minutes or less
How to replace a line trimmer carburetor

How to replace a line trimmer carburetor

If the line trimmer won't start even though there's fuel in the tank, the carburetor could be the problem. Follow these …

Repair difficulty
Time required
 15 minutes or less
How to replace a line trimmer fuel line

How to replace a line trimmer fuel line

The fuel line on a grass line trimmer deteriorates with time and eventually can split or crack. You can replace it yours…

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 grass line trimmer.

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Top questions about Sears and Sears PartsDirect

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What are the main components of a lawn mower?

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