{"product_id":"prox-piston-kit-for-yamaha-yfz450-2004-2009-and-yfz450r-2009-2011-12-0-1-compression-ratio","title":"PROX Piston Kit for Yamaha YFZ450 (2004-2009) and YFZ450R (2009-2011) - 12.0:1 Compression Ratio","description":"\u003cdiv class=\"productDescription\"\u003e\n\u003cdiv class=\"primaryProductDescription\"\u003e\u003cp\u003eExcellent economic alternative when you are looking for an OEM quality replacement piston\u003cbr\u003e\u003cbr\u003eMainly manufactured in Japan by reputable Original Equipment Manufacturers to ProX exact specifications and high quality standards\u003cbr\u003e\u003cbr\u003eSleeved cylinder piston kits are available in standard size and a Wide range of oversizes\u003cbr\u003e\u003cbr\u003ePlated cylinder piston kits come in standard size, as well as in A, B, C and D oversizes if available\u003cbr\u003e\u003cbr\u003eProX leads the industry in cast and forged pistons made specifically to replace OEM parts\u003cbr\u003e\u003cbr\u003eComes complete with pistons, piston rings, wrist pin and circlips  \u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003c\/div\u003e \u003cdiv id=\"itemGroup\" class=\"productItemGroup\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe PROX Piston Kit for Yamaha YFZ450 models from 2004 to 2009 and YFZ450R models from 2009 to 2011 offers a reliable solution for high-performance engine rebuilding and enhancements. Crafted with precision, this kit is designed to deliver optimal power and durability for off-road and racing applications. The kit includes a high-quality piston, rings, pin, and clips, ensuring a complete assembly for your ATV's engine rebuild.\u003cbr\u003eConstructed with advanced materials, the PROX piston features a 12.0:1 compression ratio that enhances engine efficiency and power output. The piston’s design incorporates features that reduce wear and improve thermal management, contributing to extended engine life under demanding conditions. This kit is an ideal choice for enthusiasts seeking improved performance without compromising reliability.\u003cbr\u003eInstallation of this piston kit is straightforward for experienced mechanics and offers a significant upgrade over stock components. The precise fit and high-grade materials ensure consistent compression and smooth operation, resulting in better throttle response and increased horsepower. Whether rebuilding after wear or upgrading for racing, the PROX piston kit provides the quality and performance that Yamaha riders depend on.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eDesigned for Yamaha YFZ450 (2004-2009) and YFZ450R (2009-2011) models\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncludes piston, rings, pin, and clips for complete assembly\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompression ratio of 12.0:1 for enhanced power and efficiency\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eConstructed with durable materials for long-lasting performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eOptimized design to reduce wear and improve thermal management\u003c\/li\u003e\u003c\/ul\u003e","brand":"PROX","offers":[{"title":"Default Title","offer_id":44585759965226,"sku":"108749","price":160.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/LG114C9A49-2A80-4900-81F3-F8F1A721C958.jpg?v=1784223972","url":"https:\/\/atticusgoods.com\/products\/prox-piston-kit-for-yamaha-yfz450-2004-2009-and-yfz450r-2009-2011-12-0-1-compression-ratio","provider":"Atticus Goods","version":"1.0","type":"link"}