Get free shipping on your order, with any water filter subscription. Find my filter

Open Hamburger Menu
Sears Parts Direct
Tips to find your model number

Onan BF-MS3271E engine Parts

Here are the diagrams and repair parts for Onan BF-MS3271E engine, as well as links to manuals and error code tables, if available.

Onan BF-MS3271E engine
By Schematic
SELECT DIAGRAM
?

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

Browse Parts for BF-MS3271E Engine

  • Fly Choke for Onan BF-MS3271E - Part 142-0546

    Carburetor parts group diagram

    Fly Choke

    Part #142-0546

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

  • Spring for Onan BF-MS3271E - Part 142-0544

    Carburetor parts group diagram

    Spring

    Part #142-0544

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

  • Gasket for Onan BF-MS3271E - Part 103-0408

    Gear cover, oil base and oil pump group diagram

    Gasket

    Part #103-0408

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

  • Intake for Onan BF-MS3271E - Part 120-0713

    Gear cover, oil base and oil pump group diagram

    Intake

    Part #120-0713

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

  • Lock for Onan BF-MS3271E - Part 110-0639

    Cylinder block group diagram

    Lock

    Part #110-0639

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

  • Pin for Onan BF-MS3271E - Part 516-0141

    Gear cover, oil base and oil pump group diagram

    Pin

    Part #516-0141

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

  • Nut 1/4x20 for Onan BF-MS3271E - Part 865-0020

    Fuel system group diagram

    Nut 1/4x20

    Part #865-0020

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

  • Lock Washer for Onan BF-MS3271E - Part 850-0055

    Crankshaft, flywheel, camshaft and piston group diagram

    Lock Washer

    Part #850-0055

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

  • Cap Screw for Onan BF-MS3271E - Part 800-0032

    Gear cover, oil base and oil pump group diagram

    Cap Screw

    Part #800-0032

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

  • Fly Throttle for Onan BF-MS3271E - Part 142-0538

    Carburetor parts group diagram

    Fly Throttle

    Part #142-0538

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

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor co…

Main causes: damaged walking belt, improper belt tension, bad roller bearing…

Main causes: faulty sensors, wiring failure, bad control console…

Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor…

Main causes: bad control console, wiring failure, bad motor control board…

Main causes: rear roller out of alignment, damaged walking belt, bad roller…

Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor…

Repair guides for treadmills

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

How to replace a treadmill walking board

How to replace a treadmill walking board

A worn-out walking board creates friction with the walking belt and causes the belt to slow down during use. Replace the…

Repair time and Difficulty

 30 minutes or less
How to replace a treadmill drive motor

How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn'…

Repair time and Difficulty

 15 minutes or less
How to replace a treadmill walking belt

How to replace a treadmill walking belt

A worn walking belt will begin to slow down during use. If your treadmill walking belt is worn out, replace it using the…

Repair time and Difficulty

 45 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 treadmill.

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.…

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.…

Parts & More

Bottom-Mount Refrigerator
Dishwasher
Electric Range
Electric Wall Oven
Front-Engine Lawn Tractor
Gas Range
Gas Water Heater
Laundry Center
Lawn & Garden
Lawn Edger
Microwave/Hood Combo
Range/Microwave Combo
Room Air Conditioner
Television
Upright Vacuum
Wall Oven
Washer