Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Tips to find your model number
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Onan
Lawn & Garden Engine

Model # BF-MS/3394F Official Onan engine

Here are the diagrams and repair parts for Official Onan BF-MS-3394F engine, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 234 parts  |
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
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
Guard 134-2606
#29

Governor, starter, alternator and air housing group diagram

Guard

Part #134-2606

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

Ignition Base 160-1219
#11

Breaker box and ignition group diagram

Ignition base

Part #160-1219

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

Stator 191-1102
#8

Governor, starter, alternator and air housing group diagram

Stator

Part #191-1102

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

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

Carburetor (with integral fuel pump) diagram

Lawn & garden equipment engine pump body gasket

Part #142-0542

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

Lawn & Garden Equipment Engine Flywheel Ring Gear 104-0779
#7

Flywheel assembly diagram

Lawn & garden equipment engine flywheel ring gear

Part #104-0779

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

Brker Box 160-1210
#15

Breaker box and ignition group diagram

Brker box

Part #160-1210

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

Washer 526-0113
Washer

Part #526-0113

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

Lawn & Garden Equipment Engine Internal Ring 518-0311
#17

Flywheel assembly diagram

Lawn & garden equipment engine internal ring

Part #518-0311

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

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

View all
Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

Read more
What are the main components of a lawn mower?

What are the main components of a lawn mower?

Learn about the main parts of a lawn mower and when to replace parts.…

Read more

Parts & More