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Tecumseh
Lawn & Garden Engine

Model # TYPE 643-21 Official Tecumseh engine

Here are the diagrams and repair parts for Official Tecumseh TYPE-643-21 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 123 parts  |
O-ring 631028
#25

Carburetor no. 631899 diagram

O-ring

Part #631028

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

/carb Float 631023
#14

Carburetor no. 631899 diagram

/carb float

Part #631023

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

Cover 610118
#43

Basic engine diagram

Cover

Part #610118

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

Piston 310230
#5

Basic engine diagram

Piston

Part #310230

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

Pistn Rng St 310190
#6

Basic engine diagram

Pistn rng st

Part #310190

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

Rewnd Startr 590420
#74

Basic engine diagram

Rewnd startr

Part #590420

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

Pump Element 630953
#6

Carburetor no. 631899 diagram

Pump element

Part #630953

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

Gasket 510274
#18

Basic engine diagram

Gasket

Part #510274

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

Bowl Gasket 631334
#21

Carburetor no. 631899 diagram

Bowl gasket

Part #631334

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

Spring 630766
#59

Basic engine diagram

Spring

Part #630766

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

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