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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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ALL PARTS
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
Armature 191-1039
#11

Starter parts group diagram

Armature

Part #191-1039

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

Lawn & Garden Equipment Engine Crankshaft Oil Seal 509-0040
#9

Gear cover, oil base and oil pump group diagram

Lawn & garden equipment engine crankshaft oil seal

Part #509-0040

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

Spring 110-0539
#31

Cylinder block group diagram

Spring

Part #110-0539

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

Valve Insert 110-1824-25
#28E

Cylinder block group diagram

Valve insert

Part #110-1824-25

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

Oil Tube 120-0735
#26

Cylinder block group diagram

Oil tube

Part #120-0735

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

Lawn & Garden Equipment Screw 104-0170
#21

Crankshaft, flyweel, camshaft and piston group diagram

Lawn & garden equipment screw

Part #104-0170

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

Body 142-0574
#1

Carburetor group diagram

Body

Part #142-0574

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

Drive Assembly 191-1036
#6

Starter parts group diagram

Drive assembly

Part #191-1036

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

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