Lawn & Garden Engine

Model # 143254412 Official Craftsman 4-cycle engine

Here are the diagrams and repair parts for Official Craftsman 143254412 4-cycle engine, as well as links to manuals and error code tables, if available.

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Browse Parts for
143254412 4-Cycle Engine
Generac Lawn & Garden Equipment Engine Fuel Line (replaces 14306, 34357) 29774
#105

Replacement parts diagram

Generac lawn & garden equipment engine fuel line (replaces 14306, 34357)

Part #29774

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Carburetor 631851
Carburetor

Part #631851

Replaced by #632795A

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Manufacturer substitution
This part replaces 631851. Substitute parts can look different from the original.
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Troybilt Lawn & Garden Equipment Engine Fuel Line Clamp 26460
#66

Replacement parts diagram

Troybilt lawn & garden equipment engine fuel line clamp

Part #26460

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Fuel Fitting 631775
#26

Carburetor diagram

Fuel fitting

Part #631775

Replaced by #632527

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Manufacturer substitution
This part replaces 631775. Substitute parts can look different from the original.
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$9.59
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Troybilt Carburetor Float 631024
#15

Carburetor diagram

Troybilt carburetor float

Part #631024

This item is not returnable
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Handle Assembly 590442
#14

Unit parts diagram

Handle assembly

Part #590442

Replaced by #590701

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Manufacturer substitution
This part replaces 590442. Substitute parts can look different from the original.
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$7.80
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Drain Plug 27244
#28

Replacement parts diagram

Drain plug

Part #27244

Replaced by #36083

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Manufacturer substitution
This part replaces 27244. Substitute parts can look different from the original.
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$7.89
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Handle Insert 590443
#15

Unit parts diagram

Handle insert

Part #590443

Replaced by #590701

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Manufacturer substitution
This part replaces 590443. Substitute parts can look different from the original.
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$7.80
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Screw 30688
#57

Replacement parts diagram

Screw

Part #30688

Replaced by #30063

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Manufacturer substitution
This part replaces 30688. Substitute parts can look different from the original.
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$2.49
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Cylinder Head 32754
#52

Replacement parts diagram

Cylinder head

Part #32754

Replaced by #27234A

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Manufacturer substitution
This part replaces 32754. Substitute parts can look different from the original.
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Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor…

Main causes: damaged walking belt, improper belt tension, bad roller bearing…

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Main causes: faulty sensors, wiring failure, bad control console…

Main causes: bad control console, wiring failure, bad motor control board…

Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor co…

Repair guides for treadmills

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

How to replace a treadmill motor controller

How to replace a treadmill motor controller

Your treadmill motor won't run with a defective motor controller. Replace the motor controller if it doesn't operate the…

Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill drive motor

How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn'…

Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill walking board

How to replace a treadmill walking board

A worn-out walking board creates friction with the walking belt and causes the belt to slow down during use. Replace the…

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 treadmill.

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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.…