Tecumseh
Lawn & Garden Engine

Model # HS40-55478E Official Tecumseh 4-cycle engine

Here are the diagrams and repair parts for Official Tecumseh HS40-55478E 4-cycle 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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Showing 10 of 202 parts  |

Gasket 27110
Gasket

Part #27110

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

/carb Float 631023
/carb float

Part #631023

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

Plug Cover 27276
#27

Basic engine diagram

Plug cover

Part #27276

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

Element 31410
#40

Basic engine diagram

Element

Part #31410

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

Thrtle Sprng 631279
Thrtle sprng

Part #631279

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

Plug 27625
#25

Basic engine diagram

Plug

Part #27625

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

Spool 30588A
#109

Basic engine diagram

Spool

Part #30588A

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

Gasket 27677
#26

Basic engine diagram

Gasket

Part #27677

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

Clip 631022
Clip

Part #631022

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

Spark Plug 33636
#37

Basic engine diagram

Spark plug

Part #33636

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

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