Description
The ProX Piston Kit for Sea Doo 951 1.5 mm is one of the largest common oversizes available for this high performance two stroke platform, offering a way to reclaim cylinders that have suffered heavy wear or damage. At this oversize, engine builders must evaluate cylinder wall thickness and overall condition carefully, but when the foundation is sound, this kit can return a well loved 951 engine to service. ProX maintains a strong emphasis on OEM style materials and machining, even at this larger displacement.
- 1.5 mm oversize piston kit configured for Sea Doo 951 engines that require a significant overbore.
- Comes with oversize piston, ring package, wrist pin, and circlips to complete the piston assembly.
- Constructed from a low expansion, low friction alloy and CNC machined to precise dimensions.
- Intended for use in cylinders bored and honed to the 1.5 mm oversize, with clearances set according to standard practices.
- Best suited to experienced builders and riders determined to extend the life of a favorite 951 powered ski.
Using this large oversize can help save cylinders that might otherwise be considered beyond service, allowing owners to keep classic machines operational. With correct preparation and careful break in, the ProX piston and ring combination can support strong compression and smooth running, even in this more demanding rebuild scenario. As with all significant overbores, thorough evaluation and skilled machine work are critical.
Inspect the entire engine including crankshaft, bearings, rods, and cases, and verify that cooling and lubrication systems are fully functional. Measure all dimensions accurately, clean passages and components thoroughly, and follow the service manual for torque and assembly details. When treated with this level of care, the ProX 1.5 mm oversize piston kit can underpin a durable, enjoyable Sea Doo 951 rebuild, giving the ski a new lease on life.
