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Onan
Lawn & Garden Engine

Model # BG-MS3272A Official Onan engine

Here are the diagrams and repair parts for Official Onan BG-MS3272A 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  |
Element 140-1216
#13

Fuel system group 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
Pre-clner 140-1259
#20

Fuel 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
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

Washer 526-0113
#28

Governor, starter charging alternator & blower housing group diagram

Washer

Part #526-0113

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

Flat Washer 526-0018
#5

Cylinder block group diagram

Flat washer

Part #526-0018

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

Flat Washer 526-0122
#29

Cylinder block group diagram

Flat washer

Part #526-0122

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

Carburetor Assembly 142-0568
Carburetor assembly

Part #142-0568

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

Sltd. Pan Hd. Self Tap Screw Type Ab No. 8 X 3/4 5592P
#29

Fuel system group diagram

Sltd. pan hd. self tap screw type ab no. 8 x 3/4

Part #5592P

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

Engine 18 B48M-3819A

#NI

All parts diagram

Engine 18

Part #B48M-3819A

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

Screw 142-0540
#11

Carburetor parts group diagram

Screw

Part #142-0540

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

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