Tecumseh
Lawn & Garden Engine

Model # 1631-B Official Tecumseh 2-cycle engine a

Here are the diagrams and repair parts for Official Tecumseh 1631-B 2-cycle engine a, 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 127 parts  |

Lawn Mower O-ring 631028
#7

Carburetor no. 632283 diagram

Lawn mower o-ring

Part #631028

Replaced by #631028A

?
Manufacturer substitution
This part replaces 631028. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$2.49
29% OFF Phone Price : $3.49
Back Order
Needle Seat 631021
#2

Carburetor no. 632283 diagram

Needle seat

Part #631021

Replaced by #631021B

?
Manufacturer substitution
This part replaces 631021. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$9.79
9% OFF Phone Price : $10.79
Back Order
Rope 590451A
#9

Rewind starter no. 590420 diagram

Rope

Part #590451A

Replaced by #590535

?
Manufacturer substitution
This part replaces 590451A. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$2.49
29% OFF Phone Price : $3.49
In Stock
Lamination 34443A
#86A

Engine diagram

Lamination

Part #34443A

Replaced by #34443D

?
Manufacturer substitution
This part replaces 34443A. Substitute parts can look different from the original.
BEST SELLER
$45.43
12% OFF Phone Price : $51.43
In Stock
Generac Lawn & Garden Equipment Engine Fuel Line (replaces 14306, 34357) 29774
#68

Engine diagram

Generac lawn & garden equipment engine fuel line (replaces 14306, 34357)

Part #29774

BEST SELLER
This item is not returnable
$5.99
14% OFF Phone Price : $6.99
In Stock
Float 632019
#5

Carburetor no. 632283 diagram

Float

Part #632019

Replaced by #632019A

?
Manufacturer substitution
This part replaces 632019. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$8.89
10% OFF Phone Price : $9.89
In Stock
Lauson Condenser (replaces 16340002, 30548) 30548B
#81

Engine diagram

Lauson condenser (replaces 16340002, 30548)

Part #30548B

In Stock
Lawn & Garden Equipment Engine Oil Seal 510319
#10

Engine diagram

Lawn & garden equipment engine oil seal

Part #510319

In Stock
Troybilt Lawn & Garden Equipment Engine Welch Plug (replaces 53-005) 631027
#1

Carburetor no. 632283 diagram

Troybilt lawn & garden equipment engine welch plug (replaces 53-005)

Part #631027

This item is not returnable
In Stock
Adjustment Lever 570645
#36

Engine diagram

Adjustment lever

Part #570645

This item is not returnable
In Stock

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.…