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Top End Piston Kit 8.6:1 Compression - 83.00mm Bore (STD) - Yamaha Big Bear/Kodiak 400


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  • SKU: PK1777
  • Manufacturer: Wiseco


Yamaha Big Bear/Kodiak 400

  • Bore: 83.00mm
  • Bore - Actual: 83.00mm
  • Bore - Oversize: STD
  • Compression Ratio - Actual: 8.6:1
  • Displacement: 387cc
  • Stroke: 71.50mm
  • Type: Piston Kit
  • UPC: 193564149022
    Includes The Following Components
  • 3268XC - 83.00 mm Ring Set
  • 4676M08300 - Yam YFM400 Kodiak/Big Bear '93-12 8.6:1
  • CW19 - 19mm Round Wire Locks - Set of Two
  • Ring - Set
  • S376 - PistonPin 19mm x 2.500" NonChromed SW
  • W5746 - TopEndGsktKit Yam YFM350 Warrior/Raptor

  • 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 / SxSYamahaYFM400 Big Bear20003841
ATV / SxSYamahaYFM400 Big Bear20014001
ATV / SxSYamahaYFM400 Big Bear20024001
ATV / SxSYamahaYFM400 Big Bear20034001
ATV / SxSYamahaYFM400 Big Bear20043841
ATV / SxSYamahaYFM400 Big Bear 4x420003841
ATV / SxSYamahaYFM400 Big Bear 4x420014001
ATV / SxSYamahaYFM400 Big Bear 4x420024001
ATV / SxSYamahaYFM400 Big Bear 4x420034001
ATV / SxSYamahaYFM400 Big Bear 4x420043841
ATV / SxSYamahaYFM400 Big Bear 4x420053841
ATV / SxSYamahaYFM400 Big Bear 4x420063841
ATV / SxSYamahaYFM400 Big Bear IRS 4x420074001
ATV / SxSYamahaYFM400 Big Bear IRS 4x420084001
ATV / SxSYamahaYFM400 Big Bear IRS 4x420094001
ATV / SxSYamahaYFM400 Big Bear IRS 4x420104001
ATV / SxSYamahaYFM400 Big Bear IRS 4x420114001
ATV / SxSYamahaYFM400 Big Bear IRS 4x420124001
ATV / SxSYamahaYFM400F Kodiak19934011
ATV / SxSYamahaYFM400F Kodiak19944011
ATV / SxSYamahaYFM400F Kodiak19954011
ATV / SxSYamahaYFM400F Kodiak19964011
ATV / SxSYamahaYFM400F Kodiak19974011
ATV / SxSYamahaYFM400F Kodiak19984011
ATV / SxSYamahaYFM400F Kodiak19994011

This product was added to our catalog on Friday 09 February, 2018.

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