{"product_id":"athena-p4f0664267019a-top-end-piston-kit-for-yamaha-250-yz-1999-2023","title":"ATHENA P4F0664267019A Top End Piston Kit for Yamaha 250 YZ 1999–2023","description":"\u003cp data-start=\"0\" data-end=\"559\" class=\"PDq2pG_selectionAnchorContainer\"\u003eBreathe new life into your 2-stroke engine with Athena's Forged Top End Piston Kit. Designed for riders who demand maximum strength and reliability, this complete rebuild kit pairs a precision-forged piston with Athena's premium top-end gasket kit for exceptional performance on the track or trail. Forged from a high-performance aluminum alloy and precision CNC machined, the piston offers superior durability, improved heat resistance, and consistent power delivery, while Athena's advanced gasket technology ensures a dependable, leak-free seal every time.\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cul data-start=\"561\" data-end=\"1055\"\u003e\n\u003cli data-section-id=\"kguxiz\" data-start=\"561\" data-end=\"649\"\u003eComplete top-end rebuild kit featuring a forged 2-stroke piston and premium gasket set\u003c\/li\u003e\n\u003cli data-section-id=\"1hymz1j\" data-start=\"650\" data-end=\"727\"\u003eForged high-performance aluminum piston for maximum strength and durability\u003c\/li\u003e\n\u003cli data-section-id=\"xk7ptc\" data-start=\"728\" data-end=\"797\"\u003ePrecision CNC-machined for OEM-quality fit and reliable performance\u003c\/li\u003e\n\u003cli data-section-id=\"1vgclmu\" data-start=\"798\" data-end=\"880\"\u003eOptimized piston profile promotes efficient combustion and smooth power delivery\u003c\/li\u003e\n\u003cli data-section-id=\"hd7crn\" data-start=\"881\" data-end=\"964\"\u003ePremium piston rings provide excellent cylinder sealing while minimizing friction\u003c\/li\u003e\n\u003cli data-section-id=\"1r0n6si\" data-start=\"965\" data-end=\"1055\"\u003eAdvanced gasket materials deliver long-lasting sealing under demanding riding conditions\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp data-start=\"1057\" data-end=\"1070\"\u003e\u003cstrong data-start=\"1057\" data-end=\"1070\"\u003eIncludes:\u003c\/strong\u003e\u003c\/p\u003e\u003cul data-start=\"1072\" data-end=\"1198\"\u003e\n\u003cli data-section-id=\"qvlji9\" data-start=\"1072\" data-end=\"1096\"\u003eForged 2-Stroke Piston\u003c\/li\u003e\n\u003cli data-section-id=\"1houaud\" data-start=\"1097\" data-end=\"1115\"\u003ePiston Rings (2)\u003c\/li\u003e\n\u003cli data-section-id=\"6aqmvn\" data-start=\"1116\" data-end=\"1140\"\u003ePiston Pin \/ Wrist Pin\u003c\/li\u003e\n\u003cli data-section-id=\"6wg6ph\" data-start=\"1141\" data-end=\"1151\"\u003eCirclips\u003c\/li\u003e\n\u003cli data-section-id=\"1gdnfzz\" data-start=\"1152\" data-end=\"1168\"\u003eNeedle Bearing\u003c\/li\u003e\n\u003cli data-section-id=\"1j4tvgc\" data-start=\"1169\" data-end=\"1198\"\u003eComplete Top End Gasket Kit\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp data-start=\"1200\" data-end=\"1217\"\u003e\u003cbr\u003e\u003c\/p\u003e\u003cul data-start=\"1219\" data-end=\"1416\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e\n\u003cli data-section-id=\"3z5g2p\" data-start=\"1219\" data-end=\"1241\"\u003ePiston Size: 66.34mm\u003c\/li\u003e\n\u003cli data-section-id=\"1ejhbhu\" data-start=\"1242\" data-end=\"1263\"\u003eDisplacement: 250cc\u003c\/li\u003e\n\u003cli data-section-id=\"pygebi\" data-start=\"1264\" data-end=\"1288\"\u003eCompression: Standard\u003c\/li\u003e\n\u003cli data-section-id=\"qzywpu\" data-start=\"1289\" data-end=\"1309\"\u003ePiston Head: Domed\u003c\/li\u003e\n\u003cli data-section-id=\"8zn354\" data-start=\"1310\" data-end=\"1331\"\u003ePiston Type: Forged\u003c\/li\u003e\n\u003cli data-section-id=\"1mb947o\" data-start=\"1332\" data-end=\"1355\"\u003ePiston Pin: Biconical\u003c\/li\u003e\n\u003cli data-section-id=\"1ylsu30\" data-start=\"1356\" data-end=\"1394\"\u003eBig End Pin Diameter: 18 x 13 x 53mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe ATHENA P4F0664267019A Top End Piston Kit is designed for Yamaha 250 YZ models from 1999 through 2023. This kit is identified as a top-end piston kit for the specified Yamaha application.\u003c\/p\u003e\n\u003cp\u003eBuilt around the ATHENA brand and part number P4F0664267019A, this replacement component is intended for use when servicing the top end of a compatible Yamaha 250 YZ motorcycle. Confirm application details before ordering to ensure the kit matches the model and model year.\u003c\/p\u003e\n\u003cp\u003eThe product is supplied as one unit, as indicated by the listed unit of measure. Use the part number to verify suitability with the motorcycle manufacturer’s service information and the requirements of the repair.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand: ATHENA\u003c\/li\u003e\n\u003cli\u003ePart Number: P4F0664267019A\u003c\/li\u003e\n\u003cli\u003eProduct Type: Top end piston kit\u003c\/li\u003e\n\u003cli\u003eApplication: Yamaha 250 YZ\u003c\/li\u003e\n\u003cli\u003eModel Years: 1999–2023\u003c\/li\u003e\n\u003cli\u003eUnit of Measure: Each\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ATHENA","offers":[{"title":"Default Title","offer_id":68128527089849,"sku":"227240","price":197.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/227240_1786041346.jpg?v=1793658330","url":"https:\/\/atticusgoods.com\/products\/athena-p4f0664267019a-top-end-piston-kit-for-yamaha-250-yz-1999-2023","provider":"Atticus Goods","version":"1.0","type":"link"}