05-'13 for Yamaha WR250F Top End Kit Strutted Forging 77.00/Std 12.5:1 Yam
05-'13 for Yamaha WR250F Top End Kit Strutted Forging 77.00/Std 12.5:1 Yam

05-'13 for Yamaha WR250F Top End Kit Strutted Forging 77.00/Std 12.5:1 Yam

WISECO

$299.95

Quantity

Manufacturer: Wiseco
MPN: PK1401
Title: Top End Kit
Size: Standard Bore 77.00mm, 12.5:1 Compression

Premium materials produce the best sealing technology available exceeding O.E.M. standards.
  • Wiseco top end gasket kit
  • Dedicated forging
  • Superior strength/weight ratio utilizing Aerospace alloy
  • Dome design
  • Maximum compression and oil control
  • Improved flame travel
  • Chrome-plated piston pin
  • Horizontal slot pin oiling
  • Reduced friction / scuff resistance
  • Pressure seal groove
  • Maximum ring seal
  • Armor Glide Skirt Coating available on select models
  • Dedicated rings

Important Notes

NOTESFits Nikasil bore.

Fitment Chart

YearMakeModelPositionNotes
2010-2015Gas GasEC 250F--
2005-2013YamahaWR 250 F--
2005-2007YamahaYZ 250 F--