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Onan
Lawn & Garden Engine

Model # BF-MS3271E Official Onan engine

Here are the diagrams and repair parts for Official Onan BF-MS3271E 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 238 parts  |
Pre-clner 140-1259
#21

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 group diagram

Armature

Part #191-1039

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

Piston Pin 112-0134-10
#12C

Crankshaft, flywheel, camshaft and piston group diagram

Piston pin

Part #112-0134-10

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

Spring 150-1398
#11

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

Spring

Part #150-1398

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

Cover 134-2889
#6

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

Cover

Part #134-2889

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

Insert 110-0245-02
#36B

Cylinder block group diagram

Insert

Part #110-0245-02

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

Stud 520-0424
#12

Cylinder block group diagram

Stud

Part #520-0424

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

Spring 110-0539
#39

Cylinder block group diagram

Spring

Part #110-0539

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

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