{"product_id":"prox-piston-kit-67-97mm-d-for-yamaha-wr-250-z-yz-250-1988-1998","title":"Prox Piston Kit 67.97mm D for Yamaha WR 250 Z YZ 250 1988-1998","description":"\u003cp\u003eElevate your motorcycle's engine performance with the Prox Piston Kit 67.97mm D, engineered as a direct OEM replacement for Yamaha WR 250 Z and YZ 250 models from 1988 to 1998. This precision-crafted \u003cstrong\u003eProx Piston Kit 67.97mm\u003c\/strong\u003e ensures optimal power delivery and durability, making it an essential upgrade for serious riders.\u003c\/p\u003e\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cp\u003eDesigned and manufactured in Japan, this Prox Piston Kit offers unparalleled quality and reliability, meeting or exceeding OEM specifications. Each piston is cast from a high-silicon-content aluminum alloy, known for its exceptional strength and thermal stability, crucial for the demanding environment of a high-performance two-stroke engine. The advanced casting process ensures a lightweight yet robust component, reducing reciprocating mass for quicker throttle response and improved engine efficiency. Furthermore, every piston undergoes meticulous CNC-machining to extremely close tolerances, guaranteeing a perfect fit within your cylinder bore (67.97mm diameter) and minimizing friction. This precision engineering translates into consistent compression, reduced wear, and extended engine life for your Yamaha YZ 250 piston replacement or WR 250 Z piston. The complete kit provides everything you need for a thorough rebuild, including the piston, a high-quality ring kit, a durable wrist pin, and secure circlips, simplifying installation and ensuring a reliable, long-lasting repair or upgrade.\u003c\/p\u003e\n\u003ch2\u003eFeatures \u0026amp; Highlights\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOEM-Quality Replacement:\u003c\/strong\u003e Manufactured in Japan using advanced processes, this kit is designed to meet or surpass original equipment manufacturer specifications, ensuring reliable performance and a perfect fit for your Yamaha WR 250 Z or YZ 250.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePremium High-Silicon Aluminum Alloy:\u003c\/strong\u003e Cast from a high-silicon-content aluminum alloy, the piston offers superior strength, excellent heat resistance, and reduced thermal expansion, contributing to increased durability and engine longevity.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePrecision CNC-Machined:\u003c\/strong\u003e Each piston is meticulously CNC-machined to extremely close tolerances, guaranteeing optimal bore alignment, minimal friction, and consistent compression for peak engine efficiency.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eComplete Kit for Easy Installation:\u003c\/strong\u003e The comprehensive kit includes the piston, a full ring kit, a robust wrist pin, and circlips, providing all necessary components for a hassle-free and complete top-end rebuild.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEnhanced Engine Performance:\u003c\/strong\u003e By ensuring a precise fit and utilizing high-quality materials, this piston kit helps restore and even improve your engine's power delivery, throttle response, and overall reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003eBrand: Prox\u003c\/li\u003e\n    \u003cli\u003eProduct Type: Piston Kit\u003c\/li\u003e\n    \u003cli\u003eBore Diameter: 67.97mm (D size)\u003c\/li\u003e\n    \u003cli\u003eMaterial: High-silicon-content aluminum alloy\u003c\/li\u003e\n    \u003cli\u003eFitment: Yamaha WR 250 Z (1988-1998), Yamaha YZ 250 (1988-1998)\u003c\/li\u003e\n    \u003cli\u003eKit Contents: Piston, Ring Kit, Wrist Pin, Circlips\u003c\/li\u003e\n    \u003cli\u003eManufacturing Origin: Japan\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEAN:\u003c\/strong\u003e 0193564274595\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Prox","offers":[{"title":"Default Title","offer_id":63703441080650,"sku":"PX7080D","price":1988.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0971\/0016\/9546\/files\/1e92ce4547be532ecb503a21c002c63a.webp?v=1790497669","url":"https:\/\/partsdenmark.se\/products\/prox-piston-kit-67-97mm-d-for-yamaha-wr-250-z-yz-250-1988-1998","provider":"Parts Denmark","version":"1.0","type":"link"}