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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 | 
19% OFF Phone Price : $31.09
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
Flat Washer 526-0018
#5

Cylinder block group 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
Lawn & Garden Equipment Engine Internal Ring 518-0311
#13

Crankshaft, flywheel, camshaft and piston group diagram

Lawn & garden equipment engine internal ring

Part #518-0311

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

Float Lever 142-0548
#21

Carburetor parts group diagram

Float lever

Part #142-0548

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

Cap 191-1040
#22

Starter parts group diagram

Cap

Part #191-1040

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

Housing 134-2988
#26

Governor, starter charging alternator & blower housing group diagram

Housing

Part #134-2988

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

Crankshaft 104-0919
#25

Crankshaft, flywheel, camshaft and piston group diagram

Crankshaft

Part #104-0919

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

Cylinder Head 110-2272
#12B

Cylinder block group diagram

Cylinder head

Part #110-2272

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

Bearing 110-0197-25
#28J

Cylinder block group diagram

Bearing

Part #110-0197-25

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

Symptoms for gas cooktops

Why won't my cooktop's gas burners ignite or spark?

Main causes: burner igniter switch failure, bad spark module, dirty or damaged spark electrode, wiring failure, lack of …

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Why isn't my cooktop's gas burner heating properly?

Main causes: gas supply problem, faulty pressure regulator, clogs in burner or orifice, burner valve failure…

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Why do my cooktop's spark igniters keep clicking?

Main causes: stuck burner igniter switch, wet igniter switch contacts, faulty spark module…

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Repair guides for gas cooktops

How to replace a spark module on a gas cooktop

How to replace a spark module on a gas cooktop

No flame on your gas cooktop? Installing a new spark module could be the fix you need.…

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Repair difficulty
Time required
 30 minutes or less
How to replace a spark igniter switch on a gas cooktop

How to replace a spark igniter switch on a gas cooktop

Follow these step-by-step instructions to fix the surface burner ignition system on your gas cooktop by replacing the sp…

Read more
Repair difficulty
Time required
 45 minutes or less

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