Improved Capped Magneto Flywheel Rotor SkiDoo MXZ Mach Z Summit 1000 2005-2007 OEM 420866042 420866043

2007 Ski-doo Summit 1000 Highmark X SDI EFI L/C

2007 Ski-doo Summit 1000 Highmark SDI EFI L/C

2007 Ski-doo Mach Z X 1000 SDI EFI L/C

2007 Ski-doo Mach Z 1000 Adrenaline SDI EFI L/C

2007 Ski-doo MX Z 1000 SDI Renegade RT EFI L/C

2006 Ski-doo Summit 1000 Highmark X SDI EFI L/C

2006 Ski-doo Summit 1000 Highmark SDI EFI L/C

2006 Ski-doo Mach Z X 1000 SDI EFI L/C

2006 Ski-doo Mach Z 1000 Adrenaline SDI EFI L/C

2006 Ski-doo MX Z 1000 Renegade X SDI EFI

2005 Ski-doo Summit 1000 Highmark X SDI EFI L/C

2005 Ski-doo Summit 1000 Highmark SDI EFI L/C

2005 Ski-doo Mach Z 1000 Adrenaline SDI EFI L/C

OEM 420866042

420866043

Dimensions:

Exterior Diameter: 128 mm

Interior Diameter: 109 mm

Interior Diameter Center Housing: 28 mm

Exterior Diameter Center Housing: 38 mm

Thickness (exterior): 58 mm

Thickness (interior): 47 mm

New heavy-duty flywheel rotor for 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 heat and friction 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.

Anyone who rides or repairs Ski-Doo 1000cc Snowmobiles 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.

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 Snowmobile.