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Onan
Lawn & Garden Engine

Model # B48G-GA018/3475A Official Onan engine

Here are the diagrams and repair parts for Official Onan B48G-GA018-3475A engine, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 262 parts  |
Pre-clner 140-1259
#3

Full system group diagram

Pre-clner

Part #140-1259

Replaced by #45-083-01-S

?
Manufacturer substitution
This part replaces 140-1259. Substitute parts can look different from the original.
This item is not returnable
$7.29 | 
12% OFF Phone Price : $8.29
In Stock
Filter 122-0338
#15

Oil system group 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.
$14.67 | 
12% OFF Phone Price : $16.67
In Stock
Screw 815-0261
#2

Blower housing and governor group diagram

Screw

Part #815-0261

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

Tune-up Kit 160-1213
Tune-up kit

Part #160-1213

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

Gasket 142-0542
#13

Carburetor diagram

Gasket

Part #142-0542

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

Seal 509-0041
#10

Cylinder block group diagram

Seal

Part #509-0041

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

Bearing 114-0257
#13A

Piston, rod, camshaft, crankshaft and flywheel group diagram

Bearing

Part #114-0257

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

Washer 191-1038
#15

Starter group diagram

Washer

Part #191-1038

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

Gasket Set 142-0571

#NI

All parts diagram

Gasket set

Part #142-0571

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

Valve Insert 110-1824-05
#13C

Cylinder block group diagram

Valve insert

Part #110-1824-05

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

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