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Top End Piston Kit 9.5:1 Compression - 91.00mm Bore (+1.00) - For 98-04 Honda TRX450 Foreman S/ES


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  • SKU: PK1591
  • Manufacturer: Wiseco


For 98-04 Honda TRX450 Foreman S/ES

  • Bore - Actual: 91.00mm
  • Bore - Oversize: 1.00
  • Bores: 91.00mm
  • Compression Ratio - Actual: 9.5:1
  • Compression Ration - Actual: 9.5:1
  • Displacement: 442cc
  • Dome Volume: +5.0cc
  • Note: Cylinder boring required
  • Notes: Cylinder boring required
  • Oversize: 1.00mm
  • Stroke: 68.00mm
  • Type: Piston Kit
  • UPC: 193564148872
    Includes The Following Components
  • 4825M09100 - Honda TRX450ES Foreman '98-04 9.5:1 CR
  • 9100XX - 91.00MM RING SET
  • CW19 - 19mm Round Wire Locks - Set of Two
  • Ring - Set
  • S660 - PistonPin 19mm x 1.986" NonChromed SW
  • W6371 - TopEndGsktKit Honda TRX450 Foreman 92mm

  • 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 / SxSHondaTRX450ES Foreman ES19984331
ATV / SxSHondaTRX450ES Foreman ES19994331
ATV / SxSHondaTRX450ES Foreman ES20004331
ATV / SxSHondaTRX450ES Foreman ES20014331
ATV / SxSHondaTRX450FE Foreman ES20024331
ATV / SxSHondaTRX450FE Foreman ES20034331
ATV / SxSHondaTRX450FE Foreman ES20044501
ATV / SxSHondaTRX450FM Foreman S20034331
ATV / SxSHondaTRX450FM Foreman S20044501
ATV / SxSHondaTRX450S Foreman S19984501
ATV / SxSHondaTRX450S Foreman S19994501
ATV / SxSHondaTRX450S Foreman S20004501
ATV / SxSHondaTRX450S Foreman S20014501
ATV / SxSHondaTRX450S Foreman S20024501

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

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