CP-Carrillo M4004A M Series Powersports Forged Piston Kit 84mm

The CP-Carrillo M4004A is a high-performance forged aluminum powersports piston and ring kit featuring an 84.00mm bore. Engineered for demanding powersports applications, this M Series kit delivers the precision, strength, and reliability that CP-Carrillo is known for worldwide.

Key Features:

• Forged aluminum construction for maximum strength and durability
• 84.00mm bore diameter for precise fitment
• Floating wrist pin design for reduced friction and smoother operation
• Gas nitrided steel top ring for superior wear resistance and sealing
• Cast iron second ring for reliable oil control
• Nitride-coated stainless steel oil ring for long-lasting performance
• Accumulator groove machined into the second ring to collect excess blow-by between the top and second rings
• Double pin oilers deliver increased lubrication from the cylinder wall to the wrist pin
• Radiused dome design maximizes quench while eliminating hot spots that promote detonation
• X-forging technology minimizes friction and weight without sacrificing structural integrity

Kit Includes: Piston, wrist pin, pin locks, and rings. Gaskets and connecting rods are not included.

CP-Carrillo M Series piston kits are purpose-built for powersports performance. Manufactured in the USA using sophisticated 3D modeling and advanced 5-axis machining, these pistons are trusted by professional racers and serious enthusiasts alike.