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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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Showing 10 of 263 parts  |
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

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

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

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
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

Fly Throttle 142-0538
#7

Carburetor parts group diagram

Fly throttle

Part #142-0538

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

Thrust Washer 104-0575
#16

Cylinder block group diagram

Thrust washer

Part #104-0575

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

Lawn & Garden Equipment Engine Breaker Point Assembly 160-1183
#10

Ignition group diagram

Lawn & garden equipment engine breaker point assembly

Part #160-1183

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

Lawn & Garden Equipment Engine Screw 142-0016
#22

Carburetor parts group diagram

Lawn & garden equipment engine screw

Part #142-0016

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

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