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  |

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
In Stock
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
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
Troybilt Lawn & Garden Equipment Engine Fuel Line Clamp 26460
#69

Engine diagram

Troybilt lawn & garden equipment engine fuel line clamp

Part #26460

BEST SELLER
This item is not returnable
$2.49
29% OFF Phone Price : $3.49
In Stock
Troybilt Lawn & Garden Equipment Engine Flywheel Key (replaces 02-403) 611004
#85A

Engine diagram

Troybilt lawn & garden equipment engine flywheel key (replaces 02-403)

Part #611004

This item is not returnable
$2.49
29% OFF Phone Price : $3.49
In Stock
Troybilt Carburetor Float 631024
#6

Carburetor no. 632283 diagram

Troybilt carburetor float

Part #631024

This item is not returnable
In Stock
Lawn & Garden Equipment Engine Carburetor O-ring 630740
#23

Carburetor no. 632283 diagram

Lawn & garden equipment engine carburetor o-ring

Part #630740

This item is not returnable
$3.64
22% OFF Phone Price : $4.64
In Stock
Troybilt Lawn & Garden Equipment Washer 650815
#30

Engine diagram

Troybilt lawn & garden equipment washer

Part #650815

This item is not returnable
In Stock
Lawn & Garden Equipment Engine Recoil Starter Pawl 590148
#4

Rewind starter no. 590420 diagram

Lawn & garden equipment engine recoil starter pawl

Part #590148

This item is not returnable
In Stock
Lawn & Garden Equipment Engine Spacer 570438A
#43

Engine diagram

Lawn & garden equipment engine spacer

Part #570438A

This item is not returnable
In Stock

Symptoms for band saws

Choose a symptom to see related band saw repairs.

Main causes: damaged rubber tire, worn wheel bearings, loose blade tension, dull saw blade…

Main causes: dull blade, using the wrong type of blade, feeding work piece to quickly, loose blade tension…

Main causes: angle indicator needs adjustment, dull blade…

Main causes: dull blade, improper feeding, loose blade tension, not using a work piece guide…

Main causes: broken saw blade, bad drive belt, damaged rubber tire…

Main causes: dull blade, using the wrong type of blade, weak drive motor…

Main causes: lack of electrical power, broken power cord, bad on/off switch, faulty drive motor…

Repair guides for band saws

These step-by-step repair guides will help you safely fix what’s broken on your band saw.

How to replace a band saw on-off switch

How to replace a band saw on-off switch

If the switch won't turn the band saw on or off, it could be defective. Replace the switch, using these steps.…

Repair difficulty
Time required
 15 minutes or less
How to replace a band saw drive belt

How to replace a band saw drive belt

If the motor runs but the blade doesn't move, it could be that the drive belt is broken. Here's how to replace it.…

Repair difficulty
Time required
 15 minutes or less
How to replace a band saw blade

How to replace a band saw blade

If the saw blade is dull or damaged and isn't cutting cleanly, replace the blade following these steps.…

Repair difficulty
Time required
 15 minutes or less

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

Use the advice and tips in these articles and videos to get the most out of your band saw.

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.…