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Tecumseh
Lawn & Garden Engine

Model # HM80-155644S Official Tecumseh engine

Here are the diagrams and repair parts for Official Tecumseh HM80-155644S engine, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 181 parts  |
Needle Seat 631021
#30

Carburetor 640125 diagram

Needle seat

Part #631021

Replaced by #631021B

?
Manufacturer substitution
This part replaces 631021. Substitute parts can look different from the original.
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Repair Kit 632760
#NI

Carburetor 640125 diagram

Repair kit

Part #632760

Replaced by #632760B

?
Manufacturer substitution
This part replaces 632760. Substitute parts can look different from the original.
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Oil 730225
#420

Engine hm80-155644s diagram

Oil

Part #730225

Replaced by #40048

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Manufacturer substitution
This part replaces 730225. Substitute parts can look different from the original.
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Lawn & Garden Equipment Engine Recoil Starter Rope, 98-in (replaces 1258, 28288, 28358, 28528, 30971, 31285, 31395, 31396, 31696, 590451a, 590456, 590527, 730608, 740032) 590535
#12

Recoil starter 590746 diagram

Lawn & garden equipment engine recoil starter rope, 98-in (replaces 1258, 28288, 28358, 28528, 30971, 31285, 31395, 31396, 31696, 590451a, 590456, 590527, 730608, 740032)

Part #590535

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Lawn & Garden Equipment Engine Fuel Line Clamp 26460
#292

Engine hm80-155644s diagram

Lawn & garden equipment engine fuel line clamp

Part #26460

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Cap 36246
#301

Engine hm80-155644s diagram

Cap

Part #36246

Replaced by #37844

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Manufacturer substitution
This part replaces 36246. Substitute parts can look different from the original.
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Gasket 27110
#44

Carburetor 640125 diagram

Gasket

Part #27110

Replaced by #27110A

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Manufacturer substitution
This part replaces 27110. Substitute parts can look different from the original.
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Float 632019
#28

Carburetor 640125 diagram

Float

Part #632019

Replaced by #632019A

?
Manufacturer substitution
This part replaces 632019. Substitute parts can look different from the original.
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Lawn & Garden Equipment Engine Air Filter (replaces 28424l) 28424
#171

Engine hm80-155644s diagram

Lawn & garden equipment engine air filter (replaces 28424l)

Part #28424

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Lawn & Garden Equipment Engine Carburetor Manifold Gasket 33263
#184

Engine hm80-155644s diagram

Lawn & garden equipment engine carburetor manifold gasket

Part #33263

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