Tecumseh
Lawn & Garden Engine

Model # VM100-157020A Official Tecumseh 4-cycle engine

Here are the diagrams and repair parts for Official Tecumseh VM100-157020A 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 179 parts  |

Spark Plug 34251
#34A

Basic engine diagram

Spark plug

Part #34251

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

O-ring 631028
#25

Carburetor diagram

O-ring

Part #631028

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

Needl/seat 631021
#12

Carburetor diagram

Needl/seat

Part #631021

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

Float 632019
#14

Carburetor diagram

Float

Part #632019

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

Breather Element Air Filter 28424
#82

Basic engine diagram

Breather element air filter

Part #28424

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
#104

Basic engine diagram

Plate

Part #31588

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

/gvnr Clamp 31335
#42

Basic engine diagram

/gvnr clamp

Part #31335

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

Screw 28820
#107

Basic engine diagram

Screw

Part #28820

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

Clip 631022
#13

Carburetor diagram

Clip

Part #631022

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.…