{"product_id":"wiseco-653m04150-gp-series-piston-kit-41-50-mm-yamaha-pw50","title":"Wiseco GP Series Piston Kit, 41.50 mm, Yamaha PW50 (653M04150)","description":"\u003cp\u003eUpgrade the performance and durability of your Yamaha PW50 with the Wiseco 653M04150 GP Series Piston Kit. Forged from a high-silicon aluminum alloy, this piston is engineered for strength, dependable operation, and sustained performance in trail and racing applications. Wiseco’s advanced forging design and piston skirt profile help maximize horsepower and torque while supporting the demanding requirements of expert riders, racers, and tuners.\u003cbr\u003eThe kit includes a forged piston, rings, wrist pin, and circlips for a comprehensive installation solution. Its high-performance design supports increased compression ratios and uses an ultra-stiff strutted forging to help maintain consistent operation under demanding conditions. Titanium nitride-coated rings are designed to improve durability and sealing, helping the engine deliver power more effectively over an extended service interval.\u003cbr\u003eEach Wiseco 653M04150 piston receives an E-Coat treatment on the crown, ring grooves, and wrist pin bore to improve wear resistance and help protect against micro-welding, galling, and detonation. GP Series pistons typically require less external machining, which can help improve bore sealing and increase compression. Boost ports are removed to promote a more predictable powerband and stronger top-end pull. Cylinder sleeves must be purchased separately. Racer’s Choice pistons may allow longer service intervals than conventional Wiseco pistons, but they are intended for expert racers and professional tuners who can properly set up and maintain the engine.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eForged high-silicon aluminum alloy construction for strength and dependability\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned for Yamaha PW50 trail and racing applications\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003e41.50 mm piston size for precise engine fitment\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncludes forged piston, rings, wrist pin, and circlips\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eHigh compression design supports increased horsepower and torque\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eUltra-stiff strutted forging helps sustain performance under racing conditions\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eTitanium nitride-coated rings improve durability and sealing\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eE-Coated crown, ring grooves, and wrist pin bore resist wear, galling, micro-welding, and detonation\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eGP Series design supports improved bore sealing and a more predictable powerband\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eBoost ports removed for increased top-end pull\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCylinder sleeve sold separately\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePart number: 653M04150\u003c\/li\u003e\u003c\/ul\u003e\r\n\u003cp\u003eShips from Parts Unlimited.\u003c\/p\u003e","brand":"Wiseco","offers":[{"title":"Default Title","offer_id":60117724692766,"sku":"653M04150","price":116.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1091\/7884\/7518\/files\/148589.png?v=1791110839","url":"https:\/\/shoplepier.com\/products\/wiseco-653m04150-gp-series-piston-kit-41-50-mm-yamaha-pw50","provider":"LEPIER POWERSPORTS","version":"1.0","type":"link"}