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Model # 143122021 Official Craftsman 4-cycle engine
Here are the diagrams and repair parts for Official Craftsman 143122021 4-cycle engine, as well as links to manuals and error code tables, if available.
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143122021 4-Cycle Engine
#114
Basic engine diagram
Fuel line
Part #30120
The manufacturer no longer makes this part, and there's no substitute part
#54
Basic engine diagram
Element
Part #27233
The manufacturer no longer makes this part, and there's no substitute part
#31
Basic engine diagram
Plug
Part #27625
The manufacturer no longer makes this part, and there's no substitute part
#28
Basic engine diagram
Plug
Part #30572
The manufacturer no longer makes this part, and there's no substitute part
#90
Basic engine diagram
Screw
Part #28820
The manufacturer no longer makes this part, and there's no substitute part
#58
Basic engine diagram
Tube
Part #27627
The manufacturer no longer makes this part, and there's no substitute part
#5
Carburetor no. 630879 diagram
Spring
Part #630766
The manufacturer no longer makes this part, and there's no substitute part
#23
Basic engine diagram
Pump assembly
Part #29914
The manufacturer no longer makes this part, and there's no substitute part
#106
Basic engine diagram
Flat washer
Part #650490
The manufacturer no longer makes this part, and there's no substitute part
#27
Basic engine diagram
Gasket
Part #28833
The manufacturer no longer makes this part, and there's no substitute part
Symptoms for treadmills
Choose a symptom to see related treadmill repairs.
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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: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor…
Main causes: damaged walking belt, improper belt tension, bad roller bearing…
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
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 walking belt
A worn walking belt will begin to slow down during use. If your treadmill walking belt is worn out, replace it using the…
Repair difficulty
Time required
45 minutes or less
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
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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