Performance Parts and Racing Parts Campbell Enterprises

YZ450F Piston CP Pistons YZ 450 High Compression, Standard Bore and Yamaha YZ450F Big Bore Piston Kits

Yamaha 450 Dirt Bike CP Pistons

CP Pistons, for those that demand the ultimate in engine performance!

High performance and racing Yamaha YZ 450 piston kits are available from CP Pistons for all model years of the YZ450F four stroke dirt bikes. Standard bore and big bore YZ450F piston kits are all available here. These forged pistons will work with oversize valves as well as high lift camshafts as they include oversize valve reliefs. They incorporate a "X" style forging for greater strength, durability and reduced weight. Along with the full radius dome designs, high performance piston rings and lightweight piston pins, these pistons offer the highest quality and are engineered for maximum power output.

CP Pistons YZ450F dirt bike racing pistons are used by top professional riders and teams.

Yamaha yz450f cp pistons

Standard Features included with each Yamaha YZ450F CP Piston Kit:

Standard series pistons have a "M" in the part number

Double forced pin oilers Fully CNC Machined
Accumulator groove Pick lock removal grooves
Anti detonation grooves X-style forging
Light weight pins Balanced to + or - 1 gram

Additional Features for "Project X" Series YZ 450F Pistons

Project X Series pistons are the result of the latest in ultra high performance technology improvements from CP. Pistons listed below with "mx" preceding the part number are part of the new "Project X" piston line up.

Project X series pistons have a "MX" in the part number

Leading edge racing piston technology Fully boxed style forging for ultimate strength, durability and power
Coated Piston Skirts Internal windows allow additional oil to flow to pin
New piston skirt designs maximize power and reduce piston rocking Wrist pins treated with proprietary coating to eliminate pin galling

 

Get HOLESHOT WINNING POWER with CP Pistons!

CP Yamaha YZ450F Piston Kits and YZ 450F Big Bore Pistons

  • Piston/Gasket Kit Set includes: 1 Piston, 1 Piston Pin, Piston Rings, Pin Lock rings, 1 Top End Gasket Kit
  • Piston Kit includes: 1 Piston, 1 Piston Pin, 1 set Piston Rings, Pin Lock rings for 1 cylinder
  • Gasket Kit Includes: Cometic high performance top end gaskets required to replace piston in 1 cylinder

2003 - 2005 YZ 450F Piston Kits and Big Bore Kits

Stock Bore: 3.740 (95mm) Stock Stroke: 2.496 (63.4mm) OEM Stock CR = 12.5:1

Bore Size Disp. Comp Installation
Notes

Yamaha YZ450F piston and top end gasket kit

Piston/Gasket Kit

2003 2004 2005 YZ 450F piston kit

Piston Kit

2003 2004 2005 YZ450F gasket kit

Gasket Kit
95mm std. 450 cc 13.0-1 deglaze cylinder cpk1010 cp m1010 c7947
95mm std. 450 cc 13.5-1 deglaze cylinder cpk1111 cp m1011
97mm +2mm oversize big bore 468cc 13.0-1 bore and replate cylinder cpk1030 cp m1030 c3064
97mm +2mm oversize big bore 468cc 13.5-1 bore and replate cylinder cpk1031 cp m1031
98mm +3mm oversize big bore 478cc 13.5-1 bore and replate cylinder cpk1051 cp m1051 c7787

2003 - 2005 YZ 450F Full Race Piston

Full race series pistons are custom forged pistons but available off the shelf. These are single ring, high compression, lightweight pistons which feature a highly efficient dome design that maximizes squish without compromising performance. Lateral gas ports are added to maximize ring seal while a skirt coating is included to improve power and provide additional lubrication, minimizing friction in extreme competition conditions.

  • Piston/Gasket Kit Set includes: 1 Piston, 1 Piston Pin, Piston Rings, Pin Lock rings, 1 Top End Gasket Kit
  • Piston Kit includes: 1 Piston, 1 Piston Pin, 1 set Piston Rings, Pin Lock rings for 1 cylinder
  • Gasket Kit Includes: Cometic high performance top end gaskets required to replace piston in 1 cylinder
Bore Size Disp. Comp Installation
Notes

 

Piston/Gasket Kit

 

Piston Kit

 

Gasket Kit
95mm std. 450 cc 13.75-1 deglaze cylinder CPKX1143 MX1043 c7947

2003 - 2005 YZ450F Project X Platinum Racing Piston and Rod Kits

Project X Platinum Kits feature the same top of the line products that serious professional mechanics and racers 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 Platinum Piston, Piston Pin, Piston Rings, Pin Lock rings, Carrillo Platinum Series Connecting Rod and Gasket Kit
  • Piston Kit includes: Full Race Platinum Series 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
Bore Size Disp. Comp Installation
Notes

YZ450F CP Platinum Racing Piston and Rod Kit

Piston,Rod
Gasket Kit

CP YZ450 Platinum Racing Piston

Piston Kit

Cometic YZ450F top end gasket kit

Gasket Kit
95mm std. 450 cc 13.5-1 deglaze cylinder, standard wrist pin diameter with 2.5mm longer rod, Lightweight CPKX1P43 MX1P43 C7947EST

2006 - 2009 YZ450F Piston Kits

Stock Bore: 3.740 (95mm) Stock Stroke: 2.496 (63.4mm) OEM Stock Compression Ratio = 12.5:1

  • Piston/Gasket Kit Set includes: 1 Piston, 1 Piston Pin, Piston Rings, Pin Lock rings, 1 Top End Gasket Kit
  • Piston Kit includes: 1 Piston, 1 Piston Pin, 1 set Piston Rings, Pin Lock rings for 1 cylinder
  • Gasket Kit Includes: Cometic high performance top end gaskets required to replace piston in 1 cylinder
Bore Size Disp. Comp Installation
Notes

2006 2007 2008 2009 YZ450F top end gasket kit

Piston/Gasket Kit

2006 2007 2008 2009 YZ450F piston kit

Piston Kit

2006 2007 2008 2009 YZ 450F gasket kit

Gasket Kit
95mm std. 450 cc 13.0-1 deglaze cylinder CPK1110 cp m1010 c7908
95mm std. 450 cc 13.5-1 deglaze cylinder CPK1011 cp m1011
97mm +2mm oversize big bore 468cc 13.0-1 bore and replate cylinder CPK1130 cp m1030 c3178
97mm +2mm oversize big bore 468cc 13.5-1 bore and replate cylinder CPK1131 cp m1031
98mm +3mm oversize big bore 478cc 13.5-1 bore and replate cylinder CPK1151 cp m1051

2006 - 2009 YZ450F Full Race Piston

Full race series pistons are custom forged pistons but available off the shelf. These are single ring, high compression, lightweight pistons which feature a highly efficient dome design that maximizes squish without compromising performance. Lateral gas ports are added to maximize ring seal while a skirt coating is included to improve power and provide additional lubrication, minimizing friction in extreme competition conditions.

  • Piston/Gasket Kit Set includes: 1 Piston, 1 Piston Pin, Piston Rings, Pin Lock rings, 1 Top End Gasket Kit
  • Piston Kit includes: 1 Piston, 1 Piston Pin, 1 set Piston Rings, Pin Lock rings for 1 cylinder
  • Gasket Kit Includes: Cometic high performance top end gaskets required to replace piston in 1 cylinder
Bore Size Disp. Comp Installation
Notes

 

Piston/Gasket Kit

 

Piston Kit

 

Gasket Kit
95mm std. 450 cc 13.75-1 deglaze cylinder CPKX1043 MX1043 c7908

2006 - 2009 YZ450F Project X Platinum Racing Piston and Rod Kits

Project X Platinum Kits feature the same top of the line products that serious professional mechanics and racers 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 Platinum Piston, Piston Pin, Piston Rings, Pin Lock rings, Carrillo Platinum Series Connecting Rod and Gasket Kit
  • Piston Kit includes: Full Race Platinum Series 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
Bore Size Disp. Comp Installation
Notes

2006 2007 2008 2009 YZ450F Platinum Professional racing piston rod gasket kit

Piston,Rod
Gasket Kit

YZ450F motocross racing piston kit

Piston Kit

cometic yz450F complete top end gasket kit

Gasket Kit
95mm std. 450 cc 13.5-1 deglaze cylinder, standard wrist pin diameter with 2.5mm Longer Rod, Lightweight CPKX1P44 MX1P43 C7908-EST

2010 - 2014 YZ450F

Stock Bore: 3.819 (97mm) Stock Stroke: 2.394 (60.8mm) OEM Stock CR = 12.5:1

Bore Size Disp. Comp Installation
Notes

2010 2011 2012 2013 YZ450F piston and gasket kit

Piston/Gasket Kit

2010 2011 2012 2013 Yamaha YZ 450F piston kit

Piston Kit

YZ450 top end gasket kit

Gasket Kit
97mm std bore 450cc 13-1 deglaze cylinder CPKX1068 MX1068 C3395
97mm std bore 450cc 13.5-1 deglaze cylinder CPKX1070 MX1070

2010 - 2014 YZ450F Full Race Piston

Full race series pistons are custom forged pistons but available off the shelf. These are single ring, high compression, lightweight pistons which feature a highly efficient dome design that maximizes squish without compromising performance. Lateral gas ports are added to maximize ring seal while a skirt coating is included to improve power and provide additional lubrication, minimizing friction in extreme competition conditions.

  • Piston/Gasket Kit Set includes: 1 Piston, 1 Piston Pin, Piston Rings, Pin Lock rings, 1 Top End Gasket Kit
  • Piston Kit includes: 1 Piston, 1 Piston Pin, 1 set Piston Rings, Pin Lock rings for 1 cylinder
  • Gasket Kit Includes: Cometic high performance top end gaskets required to replace piston in 1 cylinder
Bore Size Disp. Comp Installation
Notes

 

Piston/Gasket Kit

 

Piston Kit

 

Gasket Kit
97mm std bore 450cc 13.75-1 deglaze cylinder CPKX1069 MX1069 C3395

2010 - 2014 YZ450F Platinum Project X Racing Piston and Rod Kits

Project X Platinum Kits feature the same top of the line products that serious professional mechanics and racers 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 Platinum Piston, Piston Pin, Piston Rings, Pin Lock rings, Carrillo Platinum Series Connecting Rod and Gasket Kit
  • Piston Kit includes: Full Race Platinum Series 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
Bore Size Disp. Comp Installation
Notes

YZ450F dirt bike piston kit

Piston,Rod
Gasket Kit

Yamaha YZ450F forged piston kit

Piston Kit

2013 YZ450F gasket kit

Gasket Kit
97mm std bore 450cc 13.5-1 deglaze cylinder, standard diameter wrist pin with 2.5mm longer rod, Lightweight CPKX1P70 MX1P70 C3395

 

Carrillo Yamaha YZ 450F Connecting Rod

Carrillo YZ450F connecting rod

Premium Carrillo YZ 450F connecting rod provides superior strength for extreme high performance and racing YZ450F 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 connecting rod as well as for high performance and racing engines, including big bore engines.

2003 - 2009 YZ 450F Connecting Rod

YA-45CA-2<-04075N

2010 - 2014 YZ 450F Connecting Rod

YA-4510CA-2<-04055N

Replacement Special Carrillo YZ450F Rod for use with Platinum Series Piston

The YZ 450F connecting rods listed in this row are for use ONLY with the matching CP Platinum series pistons. This rod is 2.5mm longer than the stock rod which is why it must be used with the matching Platinum series CP Piston.

2003 - 2009 YZ450 F Platinum Kit Rod

YA-4518CA<-04173N

2010 - 2014 YZ450F Platinum Kit Rod

YA-4510CA-2<-04153N

 

Back to Top YZ450F Pistons

 

The pistons and gaskets listed on this page fit the following model year YZ450F Dirt bike engines:

2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 YZ450 F

 

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