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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  |
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
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

Replaced by #STD551025

?
Manufacturer substitution
This part replaces 526-0214. Substitute parts can look different from the original.
This item is not returnable
$2.49 | 
29% OFF Phone Price : $3.49
In Stock
Flat Washer 526-0018
#5

Cylinder block diagram

Flat washer

Part #526-0018

Replaced by #STD551025

?
Manufacturer substitution
This part replaces 526-0018. Substitute parts can look different from the original.
This item is not returnable
$2.49 | 
29% OFF Phone Price : $3.49
In Stock
Plug 502-0080
#33

Gear cover, oil base and oil pump group diagram

Plug

Part #502-0080

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

Spring 150-1214
#16

Governor, starter charging alternator & blower housing grp. diagram

Spring

Part #150-1214

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

Cap Screw 800-0028
#27

Gear cover, oil base and oil pump group diagram

Cap screw

Part #800-0028

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

Cap Screw 800-0032
#38

Gear cover, oil base and oil pump group diagram

Cap screw

Part #800-0032

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

Spring 123-1174
#2

Cylinder block diagram

Spring

Part #123-1174

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

Screw 800-0023
#17

Fuel system diagram

Screw

Part #800-0023

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

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