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

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Tractor Accessories
Lawn & Garden

Model # 640303 Official Tractor Accessories carburetor

Here are the diagrams and repair parts for Official Tractor Accessories 640303 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 27 parts  |
Lawn Mower O-ring 631028
#29

Carburetor 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
In Stock
Inlet Needle 632807
#30

Carburetor diagram

Inlet needle

Part #632807

Replaced by #631021B

?
Manufacturer substitution
This part replaces 632807. 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
Lawn & Garden Equipment Engine Carburetor Primer Bulb 640259
#35

Carburetor diagram

Lawn & garden equipment engine carburetor primer bulb

Part #640259

BEST SELLER
This item is not returnable
$9.79 | 
9% OFF Phone Price : $10.79
In Stock
Troybilt Lawn & Garden Equipment Engine Carburetor Float Bowl (replaces 631025, 632808) 631867
#25

Carburetor diagram

Troybilt lawn & garden equipment engine carburetor float bowl (replaces 631025, 632808)

Part #631867

This item is not returnable
$3.49 | 
22% OFF Phone Price : $4.49
In Stock
Carburetor 640303
#0

Carburetor diagram

Carburetor

Part #640303

Replaced by #640350

?
Manufacturer substitution
This part replaces 640303. Substitute parts can look different from the original.
$91.42 | 
6% OFF Phone Price : $97.42
In Stock
Lawn & Garden Equipment Throttle Shaft Return Spring (replaces 630731, 631279, 631279a, 631279l, 632016) 631767
#2

Carburetor diagram

Lawn & garden equipment throttle shaft return spring (replaces 630731, 631279, 631279a, 631279l, 632016)

Part #631767

This item is not returnable
$2.49 | 
29% OFF Phone Price : $3.49
In Stock
Float 632802
#28

Carburetor diagram

Float

Part #632802

Replaced by #632816

?
Manufacturer substitution
This part replaces 632802. Substitute parts can look different from the original.
This item is not returnable
$9.39 | 
10% OFF Phone Price : $10.39
In Stock
Troybilt Lawn & Garden Equipment Engine Welch Plug (replaces 53-005) 631027
#48

Carburetor diagram

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

Part #631027

This item is not returnable
$2.16
In Stock
Lawn & Garden Equipment Engine Throttle Shaft Seal 631183
#5

Carburetor diagram

Lawn & garden equipment engine throttle shaft seal

Part #631183

This item is not returnable
$2.16
In Stock
Carburetor Vent Tube 632766
#36A

Carburetor diagram

Carburetor vent tube

Part #632766

This item is not returnable
$2.16
In Stock

Parts & More