Craftsman
Lawn & Garden Engine

Model # 143102240 Official Craftsman 4-cycle gas engine

Here are the diagrams and repair parts for Official Craftsman 143102240 4-cycle gas 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 221 parts  |

Screw 28820
#90

Basic engine diagram

Screw

Part #28820

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

Gear Assembly 30117
#33

Basic engine diagram

Gear assembly

Part #30117

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

Pump Assembly 29914
#23

Basic engine diagram

Pump assembly

Part #29914

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

Tube 27627
#58

Basic engine diagram

Tube

Part #27627

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

Shaft 29194
#32

Basic engine diagram

Shaft

Part #29194

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

/gov Clamp 29916
#36

Basic engine diagram

/gov clamp

Part #29916

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

Spring 630738
#11

Carburetor no.29928 diagram

Spring

Part #630738

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

Diaphragm 630749
#22

Carburetor no.29928 diagram

Diaphragm

Part #630749

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

Washer 630739
#12

Carburetor no.29928 diagram

Washer

Part #630739

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

Hex Head Cap Screw, 1/4-28 X 7/8-in 6201
#85

Basic engine diagram

Hex head cap screw, 1/4-28 x 7/8-in

Part #6201

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

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.

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

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What are the main components of a lawn mower?

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