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Onan
Lawn & Garden Engine

Model # BG-MS3270A Official Onan engine

Here are the diagrams and repair parts for Official Onan BG-MS3270A 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 267 parts  |
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 526-0214
#28

Governor, starter charging alternator & blower housing grp. diagram

Flat washer

Part #526-0214

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 | 
19% OFF Phone Price : $31.09
In Stock
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

Lock 110-0639
#32

Cylinder block diagram

Lock

Part #110-0639

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

Washer 526-0021
#30

Governor, starter charging alternator & blower housing grp. diagram

Washer

Part #526-0021

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

Code 23dz 123-1292
#12

Gear cover, oil base and oil pump group diagram

Code 23dz

Part #123-1292

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

Valve 123-1175
#3

Cylinder block diagram

Valve

Part #123-1175

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

Screw 800-0545
#38A

Gear cover, oil base and oil pump group diagram

Screw

Part #800-0545

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

Bearing 110-0197-10
#28I

Cylinder block diagram

Bearing

Part #110-0197-10

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

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