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Onan
Lawn & Garden Engine

Model # B48G-GA020/3858C Official Onan gas engine

Here are the diagrams and repair parts for Official Onan B48G-GA020-3858C 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 297 parts  |
Plug 167-0291
#9

Ignition 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
$5.40
In Stock
Line 503-0874
#38

Fuel system diagram

Line

Part #503-0874

Replaced by #30962

?
Manufacturer substitution
This part replaces 503-0874. Substitute parts can look different from the original.
This item is not returnable
$6.76 | 
13% OFF Phone Price : $7.76
Back Order
Flat Washer 526-0018
Flat washer

Part #526-0018

Replaced by #STD551025

?
Manufacturer substitution
This part replaces 526-0018. Substitute parts can look different from the original.
This item is not returnable
$2.49 | 
29% OFF Phone Price : $3.49
In Stock
O-ring 509-0142
#30

Oil system diagram

O-ring

Part #509-0142

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

Washer 526-0234
#9

Fuel system diagram

Washer

Part #526-0234

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

Bearing 115-0006-05
#27C

Cylinder block diagram

Bearing

Part #115-0006-05

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

Ring 113-0189-10
#4C

Piston and rod diagram

Ring

Part #113-0189-10

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

.005" Oversize 112-0164-05
#1B

Piston and rod diagram

.005" oversize

Part #112-0164-05

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

Spring 142-0545
#5

Fuel pump parts diagram

Spring

Part #142-0545

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

Tune-up Kit 160-1213
#14A

Ignition breaker box diagram

Tune-up kit

Part #160-1213

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

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