Onan
Lawn & Garden Engine

Model # BG-MS/3344A Official Onan engine

Here are the diagrams and repair parts for Official Onan BG-MS-3344A 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 303 parts  |

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

Screw 800-0026
#27

Gear cover, oil base and oil pump group diagram

Screw

Part #800-0026

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

Washer 526-0113
#29

Gov starter, charging alternator & blower housing group diagram

Washer

Part #526-0113

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

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
Flat Washer 526-0214
#28

Gov starter, charging alternator & blower housing group diagram

Flat washer

Part #526-0214

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

Flat Washer 526-0018
Flat washer

Part #526-0018

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

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
17% OFF Phone Price : $30.09
In Stock
Flat Washer 526-0122
Flat washer

Part #526-0122

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

Insert 110-0245
#36A

Cylinder block group (for model bf-ms/3265f only) diagram

Insert

Part #110-0245

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

Bolt 114-0228
Bolt

Part #114-0228

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

Symptoms for gas grills

Choose a symptom to see related gas grill repairs.

Main causes: nearly empty fuel tank, faulty pressure regulator, burner tube clogs, bad burner tube alignment to gas valv…

Main causes: empty fuel tank, tripped flow-limiting device on the pressure regulator, faulty manifold valves, burner tub…

Main causes: damaged or dirty flame tamers, corroded firebox, accumulated grease and debris in the grease pan…

Main causes: clogged burner tubes, cracked insulators on igniter electrodes, wiring failures, bad ignition module, manif…

Repair guides for gas grills

These step-by-step repair guides will help you safely fix what’s broken on your gas grill.

How to replace a gas grill wheel

How to replace a gas grill wheel

Replace a broken or damaged wheel in less than 15 minutes.…

Repair difficulty
Time required
 15 minutes or less
How to replace a gas grill igniter electrode

How to replace a gas grill igniter electrode

Replace the igniter electrode on your gas grill if it won’t light the burner.…

Repair difficulty
Time required
 15 minutes or less
How to replace a gas grill ignition module

How to replace a gas grill ignition module

Follow these steps to replace the ignition module if it doesn't produce a spark. …

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your lawn & garden engines

Use the advice and tips in these articles and videos to get the most out of your gas grill.

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Top questions about Sears and Sears PartsDirect

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What are the main components of a lawn mower?

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