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9.9:1 STD Compr. Top End Piston Kit - +.5mm Bore - For 02-08 Grizzly & 05-07 Rhino


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  • SKU: PK1436
  • Manufacturer: Wiseco


For 02-08 Grizzly & 05-07 Rhino

  • Bore - Actual: 100.50mm
  • Bore - Oversize: .50mm
  • Compression Ratio - Actual: 9.9:1
  • Displacement: 666cc
  • Stroke: 84.00mm
  • Type: Piston Kit
  • UPC: 193564148766
    Includes The Following Components
  • 10050XS - 100.50 mm Ring Set
  • 4966M10050 - Yam YFM660 Raptor/Grizzly/Rhino 9.9:1 CR
  • CW22 - 22mm Round Wire Locks - Set of Two
  • Ring - Set
  • S655 - PistonPin 22 x 57.15mm NonChromed SW
  • W6428 - TopEndGsktKit Yam Grizz/Rhino 660 101mm

  • Top End kit includes: piston, rings, wrist pin, clips, top end bearing (2 strokes), and gasket kit
  • Each piston is built from race proven designs that are chosen by the top race teams in all forms of racing including Supercross, Motocross, GNCC, Superbike, and more
  • Dedicated forgings used for superior strength to weight ratio utilizing aerospace alloy
  • High Performance ring kit and alloy pin included with each piston kit for extended life and sustained power
Wiseco's complete top end Piston Kits are offered for nearly every popular motorcycle application. These kits contain everything you need to complete your rebuild the right way, the first time. High quality parts specifically chosen by us to match our forged pistons are included in this kit for easy one stop shopping.

This part fits the following

ATV / SxSYamahaYFM660 Grizzly20026601
ATV / SxSYamahaYFM660 Grizzly20036601
ATV / SxSYamahaYFM660 Grizzly Auto 4x420046601
ATV / SxSYamahaYFM660 Grizzly Auto 4x420056601
ATV / SxSYamahaYFM660 Grizzly Auto 4x420066601
ATV / SxSYamahaYFM660 Grizzly Auto 4x420076601
ATV / SxSYamahaYFM660 Grizzly Auto 4x420086601
ATV / SxSYamahaYXR660 Rhino20056601
ATV / SxSYamahaYXR660 Rhino20066601
ATV / SxSYamahaYXR660 Rhino20076601

This product was added to our catalog on Thursday 08 February, 2018.

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