PittpH KiU 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!
The PROX Piston Kit (Part Number 01.2435.A) is designed specifically for Yamaha YFZ450 models from 2004 to 2009 and the YFZ450R from 2009 to 2011, delivering reliable performance and durability. Crafted with precision engineering, this kit ensures proper fitment and optimal operation in high-performance ATV engines. The kit includes a piston assembly that features a 12.0:1 compression ratio, providing enhanced power output and efficiency for aggressive riding and competitive racing. Constructed from high-quality materials, the piston offers excellent heat resistance and strength, contributing to the longevity of your engine. The compact design and precise tolerances ensure smooth operation and ease of installation, making it suitable for both professional mechanics and DIY enthusiasts. Whether you're rebuilding your engine or upgrading for better performance, this PROX piston kit is an essential component for maintaining peak engine condition and achieving superior performance in your Yamaha ATV.
Features:
Designed for Yamaha YFZ450 (2004-2009) and YFZ450R (2009-2011) models
Includes piston assembly for complete replacement
Compression ratio: 12.0:1 for increased power
Constructed from durable high-quality materials for heat resistance and longevity
Precision engineering ensures proper fit and smooth operation
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