{"product_id":"cp-carrillo-forged-piston-kit-yamaha-yzf-r1-79mm-13-5-1-m1131","title":"2015-2023 Yamaha YZF-R1 - CP-Carrillo Forged Piston Kit 79mm 13.5:1 M1131","description":"\u003cp\u003eCP-Carrillo forged piston kit for the 2015-2023 Yamaha YZF-R1. CP-Carrillo has built pistons and rods in Irvine, California since 1975 and supplies OEM and professional race programs worldwide. This is a shelf part number, not a custom order.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e✓ Fits\u003c\/strong\u003e\u003cbr\u003e2015-2023 Yamaha YZF-R1\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e✓ Features\u003c\/strong\u003e\u003cbr\u003e2618 forged aluminum, made in Irvine California\u003cbr\u003eBore: 79mm\u003cbr\u003eStroke: 50.9mm\u003cbr\u003eCompression ratio: 13.5:1\u003cbr\u003eDisplacement: 998cc\u003cbr\u003eCompression height: 0.896 in\u003cbr\u003eDome\/dish volume: -1.74 cc\u003cbr\u003ePiston weight: 181 grams\u003cbr\u003eDual pin oilers feed twice the oil to the wrist pin\u003cbr\u003eAccumulator groove reduces ring flutter for a better seal\u003cbr\u003eBalanced within one gram, pin lock grooves machined in\u003cbr\u003eCP-Carrillo part number M1131\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e✓ What's Included\u003c\/strong\u003e\u003cbr\u003eForged piston(s)\u003cbr\u003eRing set (CPXG-7900C)\u003cbr\u003eWrist pin(s) (669-1650-12CP1C)\u003cbr\u003eWire locks (669x050 SWL)\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e✓ What's NOT Included\u003c\/strong\u003e\u003cbr\u003eConnecting rod sold separately (CP-Carrillo PSR9049)\u003c\/p\u003e\u003cp\u003eShips fast from DuneGoonShop!\u003c\/p\u003e","brand":"CP-Carrillo","offers":[{"title":"Full Set (4 pistons)","offer_id":48970719068385,"sku":"M1131-SET","price":1550.0,"currency_code":"CAD","in_stock":true},{"title":"Single Piston","offer_id":48970719101153,"sku":"M1131-SINGLE","price":423.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1219\/2993\/files\/Screenshot_2026-10-20_171051.png?v=1792541462","url":"https:\/\/dunegoonshop.com\/en-ca\/products\/cp-carrillo-forged-piston-kit-yamaha-yzf-r1-79mm-13-5-1-m1131","provider":"Dune Goons","version":"1.0","type":"link"}