{"product_id":"athena-s4f04500001a-piston-kit-1-770-in-bore-for-gasgas-husqvarna-and-ktm","title":"Athena Piston Kit, 1.770 in Bore for GasGas, Husqvarna and KTM (S4F04500001A)","description":"\u003cp\u003eThe ATHENA S4F04500001A Piston Kit is engineered for compatible GasGas, Husqvarna, and KTM engines requiring a high-quality replacement piston for the original-equipment cylinder. Designed to support dependable performance in demanding off-road and racing applications, this piston kit is built to withstand mechanical and thermal stress while maintaining consistent operation under challenging conditions.\u003cbr\u003eATHENA tested this piston on engine dynamometer benches using progressively increased stress loads, then validated its performance on the track in extreme operating conditions. This development process helps ensure the S4F04500001A delivers the durability, strength, and reliability expected from a performance-oriented replacement component. Its reverse-extruded construction provides a precise, robust piston design intended for use with the OE cylinder.\u003cbr\u003eThe kit includes piston rings engineered to help reduce friction against the original-equipment cylinder. Lower friction can support smoother piston movement, improved efficiency, and enhanced engine response while helping preserve reliable operation. The ATHENA piston kit is a practical choice for rebuilding or servicing compatible GasGas, Husqvarna, and KTM engines when fitment with the OE cylinder is required.\u003cbr\u003eBefore installation, verify vehicle compatibility and confirm that the original-equipment cylinder, piston clearance, ring end gap, and related components meet the manufacturer’s specifications. Professional installation and proper break-in procedures are recommended for best results.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eHigh resistance to mechanical and thermal stresses for demanding engine applications\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eTested on engine dynamometer benches under progressively increased stress loads\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eTrack validated for performance in extreme operating conditions\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eReverse-extruded construction designed for use with the original-equipment cylinder\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eIncludes piston rings engineered to reduce friction against the OE cylinder\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned for compatible GasGas, Husqvarna, and KTM engines\u003c\/li\u003e\u003c\/ul\u003e\r\n\u003cp\u003eShips from Parts Unlimited.\u003c\/p\u003e","brand":"Athena","offers":[{"title":"Default Title","offer_id":60117705523486,"sku":"S4F04500001A","price":142.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1091\/7884\/7518\/files\/16174.png?v=1791109698","url":"https:\/\/shoplepier.com\/products\/athena-s4f04500001a-piston-kit-1-770-in-bore-for-gasgas-husqvarna-and-ktm","provider":"LEPIER POWERSPORTS","version":"1.0","type":"link"}