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Onan
Lawn & Garden Engine

Model # B48M-GA018 Official Onan gas engine

Here are the diagrams and repair parts for Official Onan B48M-GA018 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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ALL PARTS
Showing 10 of 263 parts  |
Filter 122-0338
#15

Oil system diagram

Filter

Part #122-0338

Replaced by #52-050-02-S1

?
Manufacturer substitution
This part replaces 122-0338. Substitute parts can look different from the original.
BEST SELLER
$14.24 | 
12% OFF Phone Price : $16.24
In Stock
Plug 167-0298
#9

Ignition diagram

Plug

Part #167-0298

Replaced by #857

?
Manufacturer substitution
This part replaces 167-0298. Substitute parts can look different from the original.
This item is not returnable
$6.46
In Stock
Flat Washer 526-0018
#39

Cylinder block diagram

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
Element 140-1216
#4

Fuel system diagram

Element

Part #140-1216

Replaced by #45-083-02-S

?
Manufacturer substitution
This part replaces 140-1216. Substitute parts can look different from the original.
This item is not returnable
$25.09 | 
19% OFF Phone Price : $31.09
In Stock
O-ring 509-0142
#25

Oil system diagram

O-ring

Part #509-0142

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

Cover 140-1168
#2

Fuel system diagram

Cover

Part #140-1168

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

Head 110-2563
#37B

Cylinder block diagram

Head

Part #110-2563

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

Roto Cap 110-0904
#38

Cylinder block diagram

Roto cap

Part #110-0904

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

Ring 113-0189-40
#4F

Piston and rod diagram

Ring

Part #113-0189-40

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

Bearing, Governor Shaft 510-0105
#2

Gearcase diagram

Bearing, governor shaft

Part #510-0105

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

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