Tecumseh
Lawn & Garden Engine

Model # HM80-155135C Official Tecumseh 8-hp 4-cycle engine

Here are the diagrams and repair parts for Official Tecumseh HM80-155135C 8-hp 4-cycle engine, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

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

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 184 parts  |

Gasket 27110
#21

Carburetor diagram

Gasket

Part #27110

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

Fuel Line 29774
#107

Basic engine diagram

Fuel line

Part #29774

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

Fuel Tank 34156
#124

Basic engine diagram

Fuel tank

Part #34156

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

Float Bowl 631867
#16

Carburetor diagram

Float bowl

Part #631867

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

Plate 31588
#121

Basic engine diagram

Plate

Part #31588

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

Screw 28820
#143

Basic engine diagram

Screw

Part #28820

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

Plug 631027
#11

Carburetor diagram

Plug

Part #631027

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

Screw 6021A
#58

Basic engine diagram

Screw

Part #6021A

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

Spring 630735
#8

Carburetor diagram

Spring

Part #630735

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

Washer 30590A
#40

Basic engine diagram

Washer

Part #30590A

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

Effective articles & videos to help repair your lawn & garden engines

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

What are the main components of a lawn mower?

What are the main components of a lawn mower?

Learn about the main parts of a lawn mower and when to replace parts.…