Lawn & Garden Engine

Model # 143274242 Official Craftsman 4-cycle engine

Here are the diagrams and repair parts for Official Craftsman 143274242 4-cycle engine, as well as links to manuals and error code tables, if available.

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143274242 4-Cycle Engine
Needle Seat 631021
#12

Carburetor diagram

Needle seat

Part #631021

Replaced by #631021B

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Manufacturer substitution
This part replaces 631021. Substitute parts can look different from the original.
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Starter Rope 590527
#6

Rewind starter diagram

Starter rope

Part #590527

Replaced by #590535

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Manufacturer substitution
This part replaces 590527. Substitute parts can look different from the original.
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$2.49
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Carburetor 631903
Carburetor

Part #631903

Replaced by #632795A

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This part replaces 631903. Substitute parts can look different from the original.
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Troybilt Lawn & Garden Equipment Engine Fuel Line Clamp 26460
#66

Engine diagram

Troybilt lawn & garden equipment engine fuel line clamp

Part #26460

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Carburetor Float 631023
#14

Carburetor diagram

Carburetor float

Part #631023

Replaced by #632019A

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This part replaces 631023. Substitute parts can look different from the original.
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$8.89
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Spring Retainer 630731
#2

Carburetor diagram

Spring retainer

Part #630731

Replaced by #631767

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This part replaces 630731. Substitute parts can look different from the original.
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$2.49
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Generac Lawn & Garden Equipment Engine Nut 29752
#7

Engine diagram

Generac lawn & garden equipment engine nut

Part #29752

This item is not returnable
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Troybilt Lawn & Garden Equipment Screw 650562
#124

Engine diagram

Troybilt lawn & garden equipment screw

Part #650562

This item is not returnable
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Generac Lawn & Garden Equipment Engine Governor Control Lever Clamp 31335
#36

Engine diagram

Generac lawn & garden equipment engine governor control lever clamp

Part #31335

This item is not returnable
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Intake Valve 29314A
#5A

Engine diagram

Intake valve

Part #29314A

Replaced by #29314C

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Manufacturer substitution
This part replaces 29314A. Substitute parts can look different from the original.
This item is not returnable
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Symptoms for gas pressure washers

Choose a symptom to see related pressure washer repairs.

Main causes: using a high-pressure spray tip when applying detergent, clogged siphon tube, chemical injection system fai…

Main causes: overfilling engine with oil, improper fuel/air mixture, choke system problems, dirty carburetor, engine nee…

Main causes: broken recoil spring, damaged recoil starter…

Main causes: dirty air filter, stale fuel, clogged or dirty carburetor, bad unloader valve…

Main causes: insufficient water supply, clogged water inlet screen, clogged pressure hose, faulty pump check valves, stu…

Main causes: damaged recoil starter, oil inside cylinder, locked up engine piston…

Main causes: faulty unloader valve, bad pressure regulator…

Main causes: stale fuel, gummed up carburetor, engine needs tune up, throttle and choke controls need adjustment, bad re…

Main causes: pump running for more than 5 minutes when the spray wand isn't being used, faulty pressure relief valve, ba…

Repair guides for gas pressure washers

These step-by-step repair guides will help you safely fix what’s broken on your pressure washer.

How to install a pressure washer check valve kit

How to install a pressure washer check valve kit

Air in the inlet water supply can damage the check valves. If the pump won’t build up pressure due to damaged check valv…

Repair difficulty
Time required
 120 minutes or less
How to install a pressure washer O-ring kit

How to install a pressure washer O-ring kit

O-rings seal fittings on the pressure washer pump. Damaged seals allow water to leak from the pump. Follow these steps t…

Repair difficulty
Time required
 45 minutes or less
How to install a pressure washer chemical injection kit

How to install a pressure washer chemical injection kit

The chemical injection valve draws detergent into the pump. If it’s not drawing detergent, use a repair kit to replace t…

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 pressure washer.

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Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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What are the main components of a lawn mower?

Learn about the main parts of a lawn mower and when to replace parts.…