CP Carrillo 2004-2019 Yamaha YFZ450/R Race 13.5:1 95mm std bore piston kit

This CP Piston M piston kit is for use on your Yamaha YFZ450R / YFZ450. CP Pistons take advantage of X-forgings to minimize friction and weight without compromising strength. The piston kits double pin oilers add twice the amount of oil from the cylinder wall to the wrist pin. Quench is maximized by radiused domes, while at the same time eliminating possible hot spots that promote detonation. These kits have a V-shaped groove, also known as the accumulator groove, machined into the second ring to collect excess blowby between the top and second rings.

2004-2019 Yamaha YFZ450/R Race 13.5:1 95mm std bore piston kit

Bore:  95mm

Comp Ratio:  13.25:1 439cc; 13.5:1 449cc

Piston #:  MX1026

CPK #:  YFZ450 CPKX1026; YFZ450R CPKX1126

Rod #:  04-05 9660 06-08 custom; 09-15 8808

Pin #:  S787-2000-15C

Locks #:  787x050 SWL

Rings #:  CPN2-2-3740

Gasket Only #:  YFZ450 C3066; YFZ450R C7908