Tecumseh
Lawn & Garden Engine

Model # 670-83A Official Tecumseh 2-cycle engine

Here are the diagrams and repair parts for Official Tecumseh 670-83A 2-cycle engine, 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 128 parts  |

Spark Plug 34251
#16A

Unit parts diagram

Spark plug

Part #34251

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

Fuel Line 29774
#68

Unit parts diagram

Fuel line

Part #29774

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

Seal 510105
#29

Unit parts diagram

Seal

Part #510105

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

Washer 631183
#25

Carburetor diagram

Washer

Part #631183

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

Washer 631184
#26

Carburetor diagram

Washer

Part #631184

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

Lawn & Garden Equipment Engine Crankshaft Seal Retainer 510106A
#30

Unit parts diagram

Lawn & garden equipment engine crankshaft seal retainer

Part #510106A

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

Fuel Fitting 631803
#16

Carburetor diagram

Fuel fitting

Part #631803

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

Spring Retainer 510109A
#31

Unit parts diagram

Spring retainer

Part #510109A

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

Element 450215
#46

Unit parts diagram

Element

Part #450215

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

Diap/gaskt 630978
#22

Carburetor diagram

Diap/gaskt

Part #630978

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

Symptoms for electric cooktops

Main causes: broken surface element, surface element switch failure, control system problem, surface element limiter swi…

Repair guides for electric cooktops

How to replace a coil surface element on an electric cooktop

How to replace a coil surface element on an electric cooktop

Easily replace a coil surface element in 15 minutes or less by following these step-by-step instructions.…

Repair difficulty
Time required
 15 minutes or less
How to replace the glass top on an electric cooktop

How to replace the glass top on an electric cooktop

Don't use a cracked or damage glass cooktop—replace it, using these instructions to guide you.…

Repair difficulty
Time required
 30 minutes or less
How to replace a radiant element on an electric cooktop

How to replace a radiant element on an electric cooktop

Follow these step-by-step instructions to replace a damaged radiant element on your electric cooktop when the element wo…

Repair difficulty
Time required
 45 minutes or less

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.…