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Onan
Lawn & Garden Engine

Model # B48M-GA018/3417A Official Onan engine

Here are the diagrams and repair parts for Official Onan B48M-GA018-3417A 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 247 parts  |
Lock 5/16" - Code 21bj, 21bk, 21bw 850-0045
Lock 5/16" - code 21bj, 21bk, 21bw

Part #850-0045

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

Element 140-1216
#13

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 | 
17% OFF Phone Price : $30.09
In Stock
Washer 526-0113
#28

Governor, starter charging alternator and blower housing diagram

Washer

Part #526-0113

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

Flat Washer 526-0214
#3

Governor, starter charging alternator and blower housing diagram

Flat washer

Part #526-0214

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

Flat Washer 526-0122
#29

Cylinder block diagram

Flat washer

Part #526-0122

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

Flat Washer 526-0018
#5

Cylinder block diagram

Flat washer

Part #526-0018

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

Pre-clner 140-1259
#20

Fuel system 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
Flat Washer 526-0017
#17

Crankshaft, flywheel, camshaft and piston diagram

Flat washer

Part #526-0017

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

Plug 517-0048
#9

Cylinder block diagram

Plug

Part #517-0048

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

Screw, Hex Head Cap (3/8 - 24 X 1") - Oil By - Pass 801-0060
#17

Gear cover oil base and oil pump group diagram

Screw, hex head cap (3/8 - 24 x 1") - oil by - pass

Part #801-0060

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

Repair guides for rear-tine tillers

How to replace a tiller drive belt

How to replace a tiller drive belt

The drive belt connects the engine to the transmission, which drives the tines and wheels. If the drive belt is worn an…

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Repair difficulty
Time required
 15 minutes or less
How to replace the tines on a rear-tine tiller

How to replace the tines on a rear-tine tiller

Badly worn tines cut through the soil less effectively. If the tines are bent, dull or worn, follow these steps to repla…

Read more
Repair difficulty
Time required
 30 minutes or less

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