PROX pistons are precision machined on the latest, state of the art CNC equipment. The same low-expansion, low-friction piston alloy is used as is used for all major Japanese engine manufacturers. PROX Piston Kits are a first class solution to replace the original piston in your Motorcycle, Scooter, Moped, ATV, Personal Watercraft, etc. PROX Piston Kits for sleeved cylinders are available in standard size and a wide range of oversizes. The availability of oversizes up to 2mm significantly helps to increase the lifespan of a cylinder by offering more re-boring possibilities. PROX pistons for plated cylinders come in standard size, as well as in A, B, C, D+ oversizes. Take advantage of the additional oversizes to extend the lifespan of plated cylinders. All PROX Piston Kits are supplied complete with Piston Rings, Wrist Pin and Circlips, ready to install!
Upgrade your Yamaha YFZ450 or YFZ450R with the PROX Piston Kit designed for optimal performance and durability. This comprehensive kit is suitable for Yamaha models from 2004 to 2009 and the YFZ450R from 2009 to 2011, ensuring a perfect fit and reliable operation.
The PROX Piston Kit features high-quality materials engineered to withstand the demands of high-performance riding. Its 12.0:1 compression ratio enhances power output and throttle response, making it an ideal choice for enthusiasts seeking improved acceleration and overall engine efficiency. The kit includes a precision-machined piston, piston rings, pin, and clips, providing all necessary components for a complete overhaul or rebuild.
Designed with meticulous attention to detail, this piston kit offers excellent heat resistance and minimal expansion under high temperatures. The components are engineered for durability and longevity, reducing the need for frequent maintenance and extending the lifespan of your engine. Whether you're restoring your ATV or upgrading for competitive riding, the PROX Piston Kit delivers consistent performance and reliability.
Installation is straightforward thanks to the precise manufacturing standards and compatibility with OEM specifications. This kit is a reliable choice for mechanics and DIY enthusiasts aiming to enhance their Yamaha YFZ450's engine capabilities without sacrificing dependability. Trust PROX for quality parts that meet or exceed OEM standards, ensuring your ATV remains in top condition for miles to come.
Features:
- Designed for Yamaha YFZ450 (2004-2009) and YFZ450R (2009-2011)
- Includes piston, rings, pin, and clips for complete rebuild
- Compression ratio: 12.0:1 enhances power and throttle response
- High-quality materials for heat resistance and durability
- Precision machined for perfect fit and reliable performance
