Wiseco PK1810 Top End Kit - Standard Bore 95.00mm, 12.5:1 Compression

Bore: 95.00mm
Compression: 12.5:1 Compression
Sizing: Standard Bore

SPECIFICATIONS.
Displacement: 426cc.
Bore - Standard: 95.00mm.
Bore - Actual: 95.00mm.
Bore - Oversize: STD.
Stroke: 60.1mm.
Compression Ratio - Actual: 12.5:1.
ITEM CONTENTS.
3741XS - 95.00 mm Ring Set.
4693M09500 - Yamaha YZ426F 00-02 12.5:1 3741XS.
CW19 - ROUND WIRE PIN LOCKS 19MM (PAIR).
S660 - PistonPin 19mm x 1.986in. NonChromed SW.
W5882 - TopEndGsktKit Yam YZ426/ YZ/WR400 95mm.

Contains all the necessary components for overboring or rebuilding your top end. Feature forged pistons, rings, wrist pins, circlips and top end gasket set.

Vehicle Fitment:

2001-2002 Yamaha WR426F
2000-2002 Yamaha YZ426F