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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  |
Element 140-1216
#13

Fuel system group diagram

Element

Part #140-1216

Replaced by #45-083-02-S

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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
Lawn & Garden Equipment Engine Pump Body Gasket 142-0542
#13

Carburetor group diagram

Lawn & garden equipment engine pump body gasket

Part #142-0542

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

Bushing 150-1269
#9

Governor, starter, charging alternator & blower housing grp. diagram

Bushing

Part #150-1269

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

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

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

Control Rod 150-1350
#12

Governor, starter, charging alternator & blower housing grp. diagram

Control rod

Part #150-1350

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

Screw 800-0512
#30

Governor, starter, charging alternator & blower housing grp. diagram

Screw

Part #800-0512

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

Gasket 102-0693
#13

Gear cover, oil base and oil pump group diagram

Gasket

Part #102-0693

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

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