Tractor Accessories
Lawn & Garden

Model # 631108 Official Tractor Accessories carburetor

Here are the diagrams and repair parts for Official Tractor Accessories 631108 carburetor, 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 30 parts  |

Diaphragm 631110
#22

Chain saws carburetor diagram

Diaphragm

Part #631110

Replaced by #49-002

?
Manufacturer substitution
This part replaces 631110. Substitute parts can look different from the original.
This item is not returnable
$6.30
14% OFF Phone Price : $7.30
In Stock
Cover 630751
#23

Chain saws carburetor diagram

Cover

Part #630751

Replaced by #630751

?
Manufacturer substitution
This part replaces 630751. Substitute parts can look different from the original.
This item is not returnable
$10.62
16% OFF Phone Price : $12.62
In Stock
Washer 630739
#12

Chain saws carburetor diagram

Washer

Part #630739

Replaced by #630739

?
Manufacturer substitution
This part replaces 630739. Substitute parts can look different from the original.
This item is not returnable
In Stock
Shutter 630736
#9

Chain saws carburetor diagram

Shutter

Part #630736

Replaced by #630736

?
Manufacturer substitution
This part replaces 630736. Substitute parts can look different from the original.
This item is not returnable
In Stock
Gasket 630742
#19

Chain saws carburetor diagram

Gasket

Part #630742

Replaced by #630742

?
Manufacturer substitution
This part replaces 630742. Substitute parts can look different from the original.
This item is not returnable
In Stock
Shutter 630733
#3

Chain saws carburetor diagram

Shutter

Part #630733

Replaced by #631036

?
Manufacturer substitution
This part replaces 630733. Substitute parts can look different from the original.
This item is not returnable
In Stock
Screw 650506
#4

Chain saws carburetor diagram

Screw

Part #650506

Replaced by #650506

?
Manufacturer substitution
This part replaces 650506. Substitute parts can look different from the original.
This item is not returnable
In Stock
Screw 630737
#14

Chain saws carburetor diagram

Screw

Part #630737

Replaced by #630737

?
Manufacturer substitution
This part replaces 630737. Substitute parts can look different from the original.
This item is not returnable
In Stock
Spring 630766
#6

Chain saws carburetor diagram

Spring

Part #630766

Replaced by #630766

?
Manufacturer substitution
This part replaces 630766. Substitute parts can look different from the original.
This item is not returnable
In Stock
Valve 631032
#25

Chain saws carburetor diagram

Valve

Part #631032

Replaced by #631032

?
Manufacturer substitution
This part replaces 631032. Substitute parts can look different from the original.
In Stock

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope.…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower wheel

How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.…

Repair difficulty
Time required
 15 minutes or less

Articles and videos for gas walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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.…

Lawn mower won't start troubleshooting video: can't pull recoil pull cord

Lawn mower won't start troubleshooting video: can't pull recoil pull cord

A blade obstruction, bad recoil starter or locked-up engine can prevent the pull cord on your mower from working. See ho…