Get free shipping on your order, with any water filter subscription. Find my filter

Open Hamburger Menu
Sears Parts Direct
Tips to find your model number

Tecumseh TYPE 643-21 engine Parts

Here are the diagrams and repair parts for Tecumseh TYPE 643-21 engine, as well as links to manuals and error code tables, if available.

Tecumseh TYPE 643-21 engine
By Schematic
By Part
SELECT DIAGRAM
?

This is the number corresponding to the part on the diagram / schematic

Browse Parts for TYPE 643-21 Engine

  • Pump Element for Tecumseh TYPE 643-21 - Part 630953

    Carburetor no. 631899 diagram

    Pump Element

    Part #630953

    The manufacturer no longer makes this part, and there's no substitute part

  • Spring for Tecumseh TYPE 643-21 - Part 630766

    Basic engine diagram

    Spring

    Part #630766

    The manufacturer no longer makes this part, and there's no substitute part

  • Liners/brg for Tecumseh TYPE 643-21 - Part 530150

    Basic engine diagram

    Liners/brg

    Part #530150

    The manufacturer no longer makes this part, and there's no substitute part

  • Reed Plate for Tecumseh TYPE 643-21 - Part 470142

    Basic engine diagram

    Reed Plate

    Part #470142

    The manufacturer no longer makes this part, and there's no substitute part

  • Cylindr Head for Tecumseh TYPE 643-21 - Part 250240

    Basic engine diagram

    Cylindr Head

    Part #250240

    The manufacturer no longer makes this part, and there's no substitute part

  • Screw for Tecumseh TYPE 643-21 - Part 650545

    Basic engine diagram

    Screw

    Part #650545

    The manufacturer no longer makes this part, and there's no substitute part

  • Retainer Scr for Tecumseh TYPE 643-21 - Part 590409

    Rewind starter no. 590420 diagram

    Retainer Scr

    Part #590409

    The manufacturer no longer makes this part, and there's no substitute part

  • Rewnd Startr for Tecumseh TYPE 643-21 - Part 590420

    Basic engine diagram

    Rewnd Startr

    Part #590420

    The manufacturer no longer makes this part, and there's no substitute part

  • Brake Spring for Tecumseh TYPE 643-21 - Part 590411

    Rewind starter no. 590420 diagram

    Brake Spring

    Part #590411

    The manufacturer no longer makes this part, and there's no substitute part

  • Flt Bowl Nut for Tecumseh TYPE 643-21 - Part 631650

    Carburetor no. 631899 diagram

    Flt Bowl Nut

    Part #631650

    The manufacturer no longer makes this part, and there's no substitute part

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....

Parts & More

Canister Vacuum
Dishwasher
Gas Walk-Behind Mower
Generator
Lawn & Garden Engine
Microwave/Hood Combo
Parts
Repair