Description
The ProX Piston Kit for Yamaha VX1100 DLX/Sport/Cruiser (2005?2014) A size is a standard bore replacement aimed at the smaller end of the OEM tolerance range. These versatile three?cylinder four?stroke engines power some of Yamaha?s most popular rental and family skis, so reliability and smoothness are priorities. This kit refreshes compression and running quality while keeping displacement and compression ratio stock.
- A size standard bore piston kit for Yamaha VX1100 models from 2005?2014, including DLX, Sport, and Cruiser variants.
- Kit includes piston, ring pack, wrist pin, and circlips to renew one cylinders piston group.
- Low expansion, low friction alloy and CNC machining deliver OEM?like fit, balance, and durability.
- Designed to maintain factory clearances in A?class cylinders, supporting quiet operation and long life.
- Ideal for recreational, rental, and general use skis where predictable behavior is essential.
In a lightly honed A?grade cylinder, this ProX kit can restore strong compression, easier starting, and smoother idle. The ring package is tuned for quick seating and durable sealing in long hour, steady rpm use, helping reduce oil consumption and emissions. VX1100 skis feel more responsive off idle and more consistent at cruising speeds.
Engine builders should measure bores carefully to confirm A sizing, check ring gaps and piston to wall clearances, and replace gaskets and seals as needed. Inspect crankshaft and bearings and ensure cooling and lubrication systems are clean and free?flowing. With correct assembly and conservative break in, the ProX A size VX1100 piston kit can provide many additional seasons of dependable four?stroke service.






