Flywheel for Polaris Big Boss Trail Boss Trail Blazer 250 1988-2006 OEM 3083939

$218.89
Brand
RMSTATOR
Manufacturer Part Number
RMS120-107664--A--P
OE/OEM Part Number
3083939
Manufacturer Warranty
5
Replaces OEM Part#
3083939
condition
New
Flywheel for Polaris 250 1993 | Big Boss 250 1989-1992 | Trail Boss 250 1988-1999 | Trail Blazer 250 1990-2006
 
KEY FEATURES
 

Brand new Magneto Flywheel Rotor

All products shipped are tested

All item pictures are accurate; if in doubt, do not hesitate to compare our item to your original part

DESCRIPTION

 

Don't Repair. Replace like a pro!

New Heavy Duty Flywheel Rotor
Polaris ATV



Introducing our newest Heavy Duty Flywheel Rotor For Polaris ATVs.

Anyone who rides or repairs Polaris ATVs is probably familiar with the flywheel problems common to these models. Most of these machines will have at least one flywheel failure in their lifetime so far. Low quality epoxy was used on OEM flywheels to secure the magnets to the rotor body. Over time and many heat cycles, the epoxy fails allowing the magnets to come loose and contact the stator, potentially causing catastrophic damage.

For years, service shops & dealerships have offered low cost repairs for Polaris flywheels to save the 400$+ OEM replacement. This sounds like a great idea at first, but there are some serious issues!

The common repair is using JB Weld? Marine Blue Epoxy to reattach the loose original magnets, or to install new ones. Epoxy fixes do repair flywheels in short term, if they are done correctly. However, this kind of repair can easily cause immediate problems, and impact long term reliability of your ATV.


Watch Evan, our head of engineering, explaining why you must not repair a flywheel.


A Heavy Duty Flywheel to the rescue!

New RMSTATOR heavy-duty flywheel rotor for Polaris ATVs is a well-priced solution to problems with the OEM flywheel, and an excellent alternative to all the mechanical troubles you can encounter with a repair.

Features

  • Built to OEM size
    Fits precisely in your ride: install it and forget it.

  • Improved epoxy
    Uses high temperature epoxy that is stronger than OEM, eliminating the possibility of magnet detachment.

  • High grade steel capping
    Prevents harsh additives in motor oil from degrading the epoxy attaching the magnets. Though extremely unlikely, if a magnet did ever come loose, it would remain in the sleeve preventing contact with the stator.

  • Precise balancing
    Eliminates crankshaft vibrations for longer engine longevity.

  • Shop with confidence
    Two year warranty. All products are tested.

Don't waste time with temporary solutions, and start fixing your ride like a pro!


Why cheap repairs won't work?

Quick stronger epoxy fixes do repair flywheels in short term. It might however impair long term performance and reliability of your ride.

Remaining OEM magnets:
Original magnets remaining can still come loose at any time.

Magnet alignment:
The alignment of magnets around the flywheel is critical for proper stator operation. Even very fine misalignment will reduce stator efficiency significantly.

Magnet spacing:
Excessive epoxy or incorrect magnet spacing around the flywheel can easily affect the flywheel balance. This can cause stator contact or even crankshaft damages.

Incorrect replacement magnets:
The magnetic field strength of new magnets MUST match the originals. Stator failure can occur quickly with stronger magnets and stator output can be decreased significantly using weaker magnets.

Wrong epoxy properties:
Epoxy that is not rated to permanently handle high temperatures and oil immersion can quickly cause a serious failure.

Oil contamination:
Wrong epoxy for the application can also contaminate the crankcase oil, damaging the motor.

All these reasons make us strongly recommend that you replace your broken flywheel with a new 400+ OEM one or our new heavy duty flywheel.

Vehicle models fitment

 

Polaris 250 2x4 -- 1993
Polaris 250 4x4 -- 1993
Polaris 250 6x6 -- 1993
Polaris Big Boss 250 4x6 -- 1989-1992
Polaris Big Boss 250 6x6 -- 1991-1992
Polaris Sport 400 -- 1997
Polaris Sportsman 400 -- 1996
Polaris Trail Blazer 250 -- 1990-1994, 1996-2006
Polaris Trail Boss 250 -- 1988-1999
Polaris Trail Boss 250 R/ES -- 1988
Polaris Xplorer 250 -- 2000-2001
Polaris Xplorer 400 -- 2002

OEM part replacement

 

3083939

Specifications

 

Dimensions:
Exterior Diameter: 175 mm
Interior Diameter: 131 mm
Interior Diameter Center Housing: 25 mm
Exterior Diameter Center Housing: 35 mm
Thickness (exterior): 47 mm
Thickness (interior): 39 mm

instructions

 

Before attempting to start your Polaris, adjusting the air gap is necessary. Rotate the flywheel so the raised node is lined up with the pick up/pulser coil and adjust as close as possible but no less than 0.010".

Warning:

Risk of electric shock. Disconnect the battery before servicing.
Ensure proper installation by a qualified technician to avoid malfunction.

Item Delivery

 

Our multiple North American locations, from which we ship our products, allows us to deliver 99.7% of our orders within the specified time period. If your item is not available in our main Colorado facility, we still guarantee that your order will be delivered within the specified time period.

If your item is not delivered within this time period, we will offer you a 5.00$ discount on your order. This guarantee applies to shipments delivered in the 48 continental USA states, excluding PO boxes.