Description
The CP Carrillo CPN-3937 piston ring set delivers championship sealing performance for Sea-Doo RXP 300 1630 Ace engines using 100mm standard bore aftermarket pistons. Specifically confirmed to fit CP, Wiseco, and JE pistons, this premium ring pack handles the extreme cylinder pressures of 300+ horsepower supercharged applications while maintaining perfect oil control in Nikasil cylinders.
Gas nitrided top ring construction resists the massive heat loads of modern 1630cc marine engines, while precision second rings control oil through sustained high G operation. Low tension oil rings provide flawless cylinder wall lubrication without measurable consumption. This combination survives boost levels that destroy factory rings, making CPN-3937 the choice for serious Sea-Doo performance.
- Confirmed fitment CP, Wiseco, JE 100mm pistons in Sea-Doo 1630 Ace engines.
- Gas nitrided top ring survives 300+hp supercharger combustion temperatures.
- Precision second ring maintains oil control through extreme marine acceleration.
- Low tension oil ring eliminates consumption while optimizing cylinder lubrication.
- Per cylinder packaging for professional 3-cylinder engine programs.
- Championship proven in RXP 300 bracket racing and heads-up competition.
Serious Sea-Doo 1630 builders specify CPN-3937 rings because modern 300hp engines demand marine-specific sealing technology. These rings maintain perfect cylinder pressure when lesser sets fail, delivering consistent trap speeds through entire race seasons.
