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Craftsman
Lawn & Garden Engine

Model # 143577042 Official Craftsman 4-cycle engine

Here are the diagrams and repair parts for Official Craftsman 143577042 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 189 parts  |
O-ring 631028
#25

Carburetor no. 631063a diagram

O-ring

Part #631028

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

Needl/seat 631021
#12

Carburetor no. 631063a diagram

Needl/seat

Part #631021

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

Gasket 27110
#21

Carburetor no. 631063a diagram

Gasket

Part #27110

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

Breather Element Air Filter 28424
#40

Basic engine diagram

Breather element air filter

Part #28424

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

/carb Float 631023
#14

Carburetor no. 631063a diagram

/carb float

Part #631023

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

Plug Cover 27276
#103

Basic engine diagram

Plug cover

Part #27276

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

Tube 32447
#44

Basic engine diagram

Tube

Part #32447

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

Spring 590454
#5

Rewind starter no. 590449 diagram

Spring

Part #590454

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

Grommet 32446
#137

Basic engine diagram

Grommet

Part #32446

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

Governor Gear Assembly 30591
#107

Basic engine diagram

Governor gear assembly

Part #30591

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

Symptoms for gas cooktops

Why won't my cooktop's gas burners ignite or spark?

Main causes: burner igniter switch failure, bad spark module, dirty or damaged spark electrode, wiring failure, lack of …

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Why isn't my cooktop's gas burner heating properly?

Main causes: gas supply problem, faulty pressure regulator, clogs in burner or orifice, burner valve failure…

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Why do my cooktop's spark igniters keep clicking?

Main causes: stuck burner igniter switch, wet igniter switch contacts, faulty spark module…

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Repair guides for gas cooktops

How to replace a spark module on a gas cooktop

How to replace a spark module on a gas cooktop

No flame on your gas cooktop? Installing a new spark module could be the fix you need.…

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Repair difficulty
Time required
 30 minutes or less
How to replace a spark igniter switch on a gas cooktop

How to replace a spark igniter switch on a gas cooktop

Follow these step-by-step instructions to fix the surface burner ignition system on your gas cooktop by replacing the sp…

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Repair difficulty
Time required
 45 minutes or less

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