ProX Cast Replica piston kit engineered to match OEM-style performance with excellent stability and controlled thermal expansion. Ideal for 2-stroke engines with cast iron or Nikasil cylinder bores.
ProX Cast Piston Kit is a reliable OEM-style replacement designed for consistent 2-stroke performance and long service life. Produced using gravity casting and a high-silicon aluminum alloy, it delivers excellent stability while helping reduce thermal expansion—important for maintaining correct clearances and smooth operation under heat.
This piston kit is a smart solution when rebuilding a top end or refreshing a worn piston, restoring compression and performance with a proven cast-replica design. ProX also supports fitment needs across different cylinder types, making it suitable for both cast iron and Nikasil bores.
