Model # 640020 Official Tractor Accessories carburetor

Here are the diagrams and repair parts for Official Tractor Accessories 640020 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.

Error Codes

Model diagram and schematic

SEARCH WITHIN THIS MODEL

ALL PARTS

Showing 10 of 21 parts |

#33

Carburetor 640020 (71/143) diagram

Washer

Part #632673

Replaced by #27110A

This item is not returnable

$2.49 |

29% OFF Phone Price : $3.49

In Stock

Qty

Tecumseh Lawn & Garden Equipment Engine Carburetor Float Bowl Gasket 632548

#29

Carburetor 640020 (71/143) diagram

Tecumseh lawn & garden equipment engine carburetor float bowl gasket

Part #632548

This item is not returnable

$7.80

In Stock

Qty

Lawn & garden equipment engine spring

Part #632545

This item is not returnable

$2.16

In Stock

Qty

Tecumseh Lawn & Garden Equipment Engine Carburetor Bowl Drain Screw 632672

#32

Carburetor 640020 (71/143) diagram

Tecumseh lawn & garden equipment engine carburetor bowl drain screw

Part #632672

This item is not returnable

$2.16

In Stock

Qty

Tecumseh Lawn & Garden Equipment Engine Nozzle Tube 640022

#36

Carburetor 640020 (71/143) diagram

Tecumseh lawn & garden equipment engine nozzle tube

Part #640022

This item is not returnable

$2.16

In Stock

Qty

Tecumseh Lawn & Garden Equipment Engine Carburetor Main Jet 640021

#40

Carburetor 640020 (71/143) diagram

Tecumseh lawn & garden equipment engine carburetor main jet

Part #640021

This item is not returnable

$2.16

In Stock

Qty

Carburetor 640020 (71/143) diagram

Tecumseh shaft lever

Part #632539

$19.03

In Stock

Qty

#39

Carburetor 640020 (71/143) diagram

Tecumseh retainer

Part #632549

This item is not returnable

$2.16

In Stock

Qty

Lawn & Garden Equipment Engine Carburetor Valve Seat Gasket 632709

#30

Carburetor 640020 (71/143) diagram

Lawn & garden equipment engine carburetor valve seat gasket

Part #632709

This item is not returnable

$7.80

In Stock

Qty

Tecumseh Lawn & Garden Equipment Engine Carburetor Rebuild Kit (replaces 730637) 730637A

#(NI)

Carburetor 640020 (71/143) diagram

Tecumseh lawn & garden equipment engine carburetor rebuild kit (replaces 730637)

Part #730637A

$38.27 |

14% OFF Phone Price : $44.27

In Stock

Qty

Most common symptoms to help you fix your dishwashers

Choose a symptom to see related dishwasher repairs.

View all

Why does my dishwasher door drop open too fast?

Main causes: broken door spring, damaged or broken door hinge…

Why don't my dishes get dry?

Main causes: not using rinse aid, rinse aid dispenser failure, broken heating element, malfunctioning vent, drying fan f…

Why won't my dishwasher fill?

Main causes: water supply problem, stuck overfill float, clogged water inlet valve screen, water inlet valve failure…

Why won't my dishwasher start?

Main causes: light switch beside the sink turned off, lack of power, bad dishwasher door switch, control system failure,…

Why isn't my dishwasher getting dishes clean?

Main causes: improper loading, low water temperature, improper detergent dosage, detergent dispenser failure, spray arm …

Why is my dishwasher noisy?

Main causes: glass or popcorn kernel stuck in the chopper blade, drain line vibrating against the cabinet, debris in was…

Why won't my dishwasher drain?

Main causes: clogged kitchen sink drain, clogged drain hose, drain check valve damaged, drain pump failure, control syst…

Why can't I adjust the dishwasher rack height?

Main cause: damaged rack height adjuster…

Why is my dishwasher leaking?

Main causes: damaged or stuck spray arm, leaking door seal, damaged door hinge, leaky heating element water seal, cracke…

Most common repair guides to help fix your dishwashers

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

View all

How to replace a dishwasher water inlet valve

If your dishwasher fills constantly or won't fill at all, the water inlet valve has failed. You can replace it in about …

Repair difficulty

Time required

30 minutes or less

How to replace a dishwasher detergent dispenser

Dishes need dish detergent to get clean. Learn how to replace a dishwasher detergent dispenser with easy step-by-step i…

Repair difficulty

Time required

30 minutes or less

How to replace a dishwasher door outer panel

If your dishwasher door is dented or you want it to match your cabinets or other appliances, this guide shows how to rep…

Repair difficulty

Time required

15 minutes or less

Effective articles & videos to help repair your dishwashers

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

View all

5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

Get tips on completing essential holiday cleaning tasks to brighten your home.…

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

Model # 640020 Official Tractor Accessories carburetor

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Most common symptoms to help you fix your dishwashers

Why does my dishwasher door drop open too fast?

Why don't my dishes get dry?

Why won't my dishwasher fill?

Why won't my dishwasher start?

Why isn't my dishwasher getting dishes clean?

Why is my dishwasher noisy?

Why won't my dishwasher drain?

Why can't I adjust the dishwasher rack height?

Why is my dishwasher leaking?

Most common repair guides to help fix your dishwashers

How to replace a dishwasher water inlet valve

How to replace a dishwasher detergent dispenser

How to replace a dishwasher door outer panel

Effective articles & videos to help repair your dishwashers

5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

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

Top questions about Sears and Sears PartsDirect

Parts & More

Stay Connected

Quick links

Let us help you

More resources