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Onan
Lawn & Garden Engine

Model # B48G-GA020/3858C Official Onan gas engine

Here are the diagrams and repair parts for Official Onan B48G-GA020-3858C gas 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 297 parts  |
Line 503-0874
#38

Fuel system diagram

Line

Part #503-0874

Replaced by #30962

?
Manufacturer substitution
This part replaces 503-0874. Substitute parts can look different from the original.
This item is not returnable
$6.76 | 
13% OFF Phone Price : $7.76
In Stock
Plug 167-0291
#9

Ignition diagram

Plug

Part #167-0291

Replaced by #909

?
Manufacturer substitution
This part replaces 167-0291. Substitute parts can look different from the original.
This item is not returnable
$5.40
In Stock
Screw 813-0143
#5

Flywheel alternator - 15 ampere diagram

Screw

Part #813-0143

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

Ignition Base 160-1219
#11

Ignition breaker box diagram

Ignition base

Part #160-1219

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

Armature 191-1039
#16

Starter motor parts diagram

Armature

Part #191-1039

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

Plate 101-0551
#8

Cylinder block diagram

Plate

Part #101-0551

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

Rod 150-1729
#3

Governor diagram

Rod

Part #150-1729

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

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

Gearcase 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 134-4028
#13

Air housing diagram

Cover

Part #134-4028

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

Piston 112-0164-30
#1E

Piston and rod diagram

Piston

Part #112-0164-30

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

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