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Onan
Lawn & Garden Engine

Model # BG-MS2980A Official Onan engine

Here are the diagrams and repair parts for Official Onan BG-MS2980A 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 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
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
Yoke 150-1187
#4

Gear cover, oil base and oil pump group diagram

Yoke

Part #150-1187

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

Key 515-0103
#28

Crankshaft, flyweel, camshaft and piston group diagram

Key

Part #515-0103

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

Rod Assembly 114-0247-20
#14C

Crankshaft, flyweel, camshaft and piston group diagram

Rod assembly

Part #114-0247-20

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

Baffle 123-1173
#4

Cylinder block group diagram

Baffle

Part #123-1173

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

Screw 142-0540
#11

Carburetor group diagram

Screw

Part #142-0540

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

Condenser 312-0196
#7

Ignition group diagram

Condenser

Part #312-0196

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

Washer 526-0066
Washer

Part #526-0066

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

Bearing 101-0450-20
#15D

Cylinder block group diagram

Bearing

Part #101-0450-20

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

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