Onan
Lawn & Garden Engine

Model # T260G-GA024/3851A Official Onan gas engine

Here are the diagrams and repair parts for Official Onan T260G-GA024-3851A gas engine, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 293 parts  |

Plug 167-0291
#9

Ignition system diagram

Plug

Part #167-0291

Replaced by #909

?
Manufacturer substitution
This part replaces 167-0291. Substitute parts can look different from the original.
This item is not returnable
In Stock
Hose 503-0708
#32

Fuel system diagram

Hose

Part #503-0708

Replaced by #30962

?
Manufacturer substitution
This part replaces 503-0708. Substitute parts can look different from the original.
This item is not returnable
$6.76
13% OFF Phone Price : $7.76
In Stock
Lawn & Garden Equipment Screw 104-0170
#1

Crankshaft and flywheel diagram

Lawn & garden equipment screw

Part #104-0170

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

Spacer 191-1047
#10

Starter motor parts diagram

Spacer

Part #191-1047

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

Insert 110-1933-05
#25C

Cylinder block diagram

Insert

Part #110-1933-05

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

Washer 851-0029
#45

Cylinder block diagram

Washer

Part #851-0029

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

Washer 526-0250
#44

Cylinder block diagram

Washer

Part #526-0250

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

Key 515-0227
#13

Crankshaft and flywheel diagram

Key

Part #515-0227

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

Lawn & Garden Equipment Engine Special Washer 105-0541
#4

Camshaft diagram

Lawn & garden equipment engine special washer

Part #105-0541

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

Carburetor Mounting Gasket 154-0733
Carburetor mounting gasket

Part #154-0733

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

Symptoms for treadmills

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Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor…

Main causes: damaged walking belt, improper belt tension, bad roller bearing…

Repair guides for treadmills

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

How to replace a treadmill motor controller

How to replace a treadmill motor controller

Your treadmill motor won't run with a defective motor controller. Replace the motor controller if it doesn't operate the…

Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill walking belt

How to replace a treadmill walking belt

A worn walking belt will begin to slow down during use. If your treadmill walking belt is worn out, replace it using the…

Repair difficulty
Time required
 45 minutes or less
How to replace a treadmill drive motor

How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn'…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your lawn & garden engines

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

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Top questions about Sears and Sears PartsDirect

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What are the main components of a lawn mower?

Learn about the main parts of a lawn mower and when to replace parts.…