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Tecumseh TYPE 643-21A engine Parts
Here are the diagrams and repair parts for Tecumseh TYPE 643-21A engine, as well as links to manuals and error code tables, if available.
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By Part
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Browse Parts for TYPE 643-21A Engine
Rewind starter diagram
Pulley
Part #590413A
The manufacturer no longer makes this part, and there's no substitute part
Basic engine diagram
Bearing
Part #530143A
The manufacturer no longer makes this part, and there's no substitute part
Magneto diagram
Coil
Part #30560A
The manufacturer no longer makes this part, and there's no substitute part
Basic engine diagram
Clip
Part #610121
The manufacturer no longer makes this part, and there's no substitute part
Carburetor diagram
Pump Element
Part #630953
The manufacturer no longer makes this part, and there's no substitute part
Basic engine diagram
Spring
Part #630766
The manufacturer no longer makes this part, and there's no substitute part
Carburetor diagram
Bowl Gasket
Part #631334
The manufacturer no longer makes this part, and there's no substitute part
Basic engine diagram
Retainer
Part #510106
The manufacturer no longer makes this part, and there's no substitute part
Carburetor diagram
Screw
Part #650506
The manufacturer no longer makes this part, and there's no substitute part
Basic engine diagram
Starter Cup
Part #590416
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.
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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 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 time and Difficulty
15 minutes or less
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 time and Difficulty
15 minutes or less
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 time and Difficulty
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.
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