Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Tips to find your model number
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Tecumseh
Lawn & Garden Engine

Model # HS40-55390D Official Tecumseh 4-cycle engine

Here are the diagrams and repair parts for Official Tecumseh HS40-55390D 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 172 parts  |
Gasket 27110
#21

Carburetor no. 631667 diagram

Gasket

Part #27110

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

Float Bowl 631867
#16

Carburetor no. 631667 diagram

Float bowl

Part #631867

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

Thrtle Sprng 631279
#2

Carburetor no. 631667 diagram

Thrtle sprng

Part #631279

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

Screw 30564
#28

Basic engine diagram

Screw

Part #30564

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

Screw 28820
#94

Basic engine diagram

Screw

Part #28820

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

Link 31858
#58

Basic engine diagram

Link

Part #31858

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

Spring 630735
#8

Carburetor no. 631667 diagram

Spring

Part #630735

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

Ring 20381
#16

Basic engine diagram

Ring

Part #20381

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

Washer 30590A
#97

Basic engine diagram

Washer

Part #30590A

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

Pstn Pn Assm 32603
#14

Basic engine diagram

Pstn pn assm

Part #32603

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

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

View all
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.…

Read more
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.…

Read more

Parts & More