Description
The ProX Piston Kit for Sea Doo RXP300 2016 2023 99.93 mm 8.4 C size is configured for cylinders that measure at the larger end of the factory tolerance band. With a nominal bore of 99.93 mm, this piston helps maintain suitable clearances and reliable ring sealing in those bores, even under high boost and aggressive riding. ProX applies the same OEM style material selection and machining standards used throughout its piston lineup.
- C size piston kit for Sea Doo RXP300 engines spanning 2016 to 2023, at 99.93 mm nominal bore and approximately 8.4 to 1 compression.
- Includes piston, ring set, wrist pin, and circlips to complete the piston assembly for a single cylinder.
- Manufactured from a durable low expansion, low friction alloy and finished to tight tolerances on CNC equipment.
- Optimized for cylinders gauged into the C size group, helping control noise, wear, and operating temperature behavior.
- Designed specifically to withstand the demands of supercharged, high rpm personal watercraft usage.
Choosing the correct C size piston is important in maintaining a proper balance between clearance and stability, particularly in engines exposed to frequent high load operation. The ProX kit supports dependable ring sealing, efficient combustion, and predictable power delivery so that RXP300 owners can keep enjoying confident, hard charging performance. When combined with correct tuning and maintenance, it is a strong foundation for a long lived rebuild.
Engine builders should confirm cylinder measurements with appropriate tools, inspect supporting components, and replace gaskets and seals as needed. Validate the condition of the supercharger, intercooler, and cooling system, and follow manufacturer guidelines for assembly and break in. With this level of care, the ProX C size piston kit can help ensure that a rebuilt RXP300 engine delivers factory like strength and reliability for many riding seasons.
