CP Pistons Yamaha YFZ 450 Piston Kits Standard Bore, High Compression YFZ450 Big Bore Pistons

Standard Features included with each Yamaha YFZ450 CP Piston Kit:

Project X Platinum Racing Piston, Rod, Gasket Kit for Yamaha YFZ 450

Developed and proven in the 2009 AMA outdoor motocross season, these championship winning kits have once again changed the game. Project X Platinum Kits feature the same top of the line products that top professionals rely on. The redesigned piston and rod combo gives your engine a lightweight assembly that is engineered to give you more power and durability. Revolutionary to the industry, these types of assemblies were once only available as custom pieces at custom prices. Now, off the shelf and available, these kits are just the thing you need to transform your bike into a racing machine without breaking the bank.

• Platinum Kit includes: Full Race Piston, Piston Pin, Piston Rings, Pin Locks, Carrillo Rod and Gasket Kit
• Piston Kit includes: Full Race Piston, Piston Pin, Piston Rings, Pin Lock rings for 1 cylinder
• Gasket Kit Includes: Cometic high performance top end gaskets required to replace piston and rod in 1 cylinder

2003 - 2016 Yamaha YFZ450 Project X Platinum Kit

Stock Bore size is 95mm (3.740")

Stock Stroke 2003 - 2005 is 62mm (2.440"), Stock Stroke 2006 - 2016 is 63.4mm (2.496")

cp c3066est

Carrillo Yamaha YFZ450 Connecting Rod YFZ 450 Racing Rod

Premium Carrillo YFZ 450 connecting rod provides superior strength for extreme high performance and racing Yamaha YFZ450 engines. Designed with legendary Carrillo quality to give you an extremely strong and dependable replacement connecting rod at a reasonable price. Can be used as a stock replacement YFZ 450 connecting rod as well as for high performance and racing engines, including big bore engines.

2003 - 2005

YA-YFZCA-2<-04035N

$423.00 $422.96

2006 - 2007

YA-YFZCA-2<-03996N

$423.00 $422.96

2008 - 2016

YA-YF08CA-2<-03996N

$423.00 $422.96

Cylinder Works YFZ 450 Big Bore Kits

Cylinder Works YFZ450 Big Bore Kit features and included parts:

• New cylinder, honed to size for easy piston installation
• Piston kit
• Gasket kit
• Virtually Identical in appearance to stock
• Just purchase and install no additional machine work required
• Fits 2004 - 2010 models

Complete YFZ 450 Big Bore Kit

Replacement YFZ450 Big Bore Piston

YFZ450 Big Bore Top End Gasket Kit

Big Bore YFZ450 Piston Ring Set

Wiseco YFZ450 Pistons, Piston Kits, Top End Gasket Kits and Complete Big Bore Kits with Cylinders

Wiseco 2004 2005 / 2006 2007 2008 2009 2010 2011 Yamaha YFZ 450 Pistons

The 2006 and newer engines use a slightly longer stroke crankshaft, which is why the engine ccs and compression listed below is different than for the 2004 - 05 YFZ450 engines.

• Stock Bore size is 95mm (3.740")
• Stock Stroke 2003 - 2005 is 62mm (2.440")
• Stock Stroke 2006 2007 2008 2009 2010 2011 is 63.4mm (2.496")
• We can provide cylinder bore and replate work, please contact us for assistance

Wiseco 4865M09500

Wiseco PK1071

Wiseco W6129

Wiseco 4835M09500

Wiseco PK1064

Wiseco W6129

Wiseco 4865M09600

Wiseco PK1072

Wiseco W6248

Wiseco 4835M09600

Wiseco PK1065

Wiseco W6248

Wiseco 4906M09800

Wiseco CK189

This is a complete big bore kit which includes a new cylinder

Wiseco W6414

Wiseco RACE ONLY YFZ450 2003 - 2005 / 2006-2007-2008 2009 2010 2011 2012 Piston

This kit includes

Wiseco Full Race YFZ450 piston kits are custom pistons with shelf stocking part availability. These single ring, high compression, lightweight pistons feature a highly efficient dome design that maximizes squish without compromising performance. Lateral gas ports are added to maximize ring seal while skirt coating provides additional lubrication, minimizing friction in extreme conditions.The Full Race YFZ450 piston kits come complete with high performance piston rings, lightweight pins and locks.

Wiseco 4929M09500

Wiseco W6129