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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
Plug 517-0067
#43

Cylinder block diagram

Plug

Part #517-0067

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

Retaining Ring 150-0078
#1

Camshaft diagram

Retaining ring

Part #150-0078

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

Blower 134-3847
#16

Crankshaft and flywheel diagram

Blower

Part #134-3847

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

Diaphragm 142-0555
#9

Fuel pump parts diagram

Diaphragm

Part #142-0555

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

Base 149-1324
#7

Fuel pump parts diagram

Base

Part #149-1324

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

Elbow 502-0313
#32

Fuel system diagram

Elbow

Part #502-0313

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

Oil Governor Shaft Seal 509-0008
#7

Gearcase diagram

Oil governor shaft seal

Part #509-0008

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

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