{"title":"JE Pistons","description":"","products":[{"product_id":"je-pistons-big-bore-piston-set-harley-milwaukee-m8-17-up","title":"JE Pistons Big Bore Piston Set Harley Milwaukee M8 17-Up","description":"\u003cdiv class=\"ng-star-inserted\"\u003e\n\u003cp\u003eUpgrade your Harley-Davidson Milwaukee-Eight engine with JE Pistons Big Bore Piston Sets, engineered for riders demanding superior power and long-term reliability. These high-performance pistons are designed specifically for 2017-up M8 models, providing a significant boost in performance through precision engineering and advanced materials.\u003c\/p\u003e\n\u003cul class=\"pl-3\"\u003e\n\u003cli class=\"ng-star-inserted\"\u003eForged from 2618-T6 aluminum for better aligned grain flow and higher tensile strength\u003c\/li\u003e\n\u003cli class=\"ng-star-inserted\"\u003eSkirt coating aids in optimal break-in for performance longevity\u003c\/li\u003e\n\u003cli class=\"ng-star-inserted\"\u003eHigh 11.0:1 compression ratio for improved performance and throttle response\u003c\/li\u003e\n\u003cli class=\"ng-star-inserted\"\u003eAccumulator groove provides additional volume for combustion pressure, reducing pressure build-up at the top ring\u003c\/li\u003e\n\u003cli class=\"ng-star-inserted\"\u003eDesigned for street riding styles with a focus on durability and heat management\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"ng-star-inserted\"\u003e\n\u003ch5\u003eTechnical Specifications\u003c\/h5\u003e\n\u003cp\u003eEvery JE Pistons Big Bore kit is built to exacting standards, ensuring a perfect fit and maximum power delivery for your Harley M8. These sets include high-quality rings, pins, and locks to complete your top-end build.\u003c\/p\u003e\n\u003ctable class=\"data table additional-attributes\" id=\"product-attribute-specifications-table\"\u003e\n\u003ccaption class=\"table-caption\"\u003eStandard Series Specifications\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth class=\"col label odd\" scope=\"row\"\u003ePiston Material\u003c\/th\u003e\n\u003ctd class=\"col data odd\"\u003e2618-T6 Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label even\" scope=\"row\"\u003eForging Type\u003c\/th\u003e\n\u003ctd class=\"col data even\"\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label odd\" scope=\"row\"\u003eCompression Ratio\u003c\/th\u003e\n\u003ctd class=\"col data odd\"\u003e11.00:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label even\" scope=\"row\"\u003ePiston Pin Outside Diameter\u003c\/th\u003e\n\u003ctd class=\"col data even\"\u003e0.927\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label odd\" scope=\"row\"\u003ePiston Pin Inside Diameter\u003c\/th\u003e\n\u003ctd class=\"col data odd\"\u003e0.627\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label even\" scope=\"row\"\u003ePiston Pin Length\u003c\/th\u003e\n\u003ctd class=\"col data even\"\u003e63.50\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label odd\" scope=\"row\"\u003eRingset Included\u003c\/th\u003e\n\u003ctd class=\"col data odd\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label even\" scope=\"row\"\u003eRetainer Lock Part Number\u003c\/th\u003e\n\u003ctd class=\"col data even\"\u003e927-073-MW\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth class=\"col label odd\" scope=\"row\"\u003ePin Part Number\u003c\/th\u003e\n\u003ctd class=\"col data odd\"\u003e927-2500-15-51C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"JE Pistons","offers":[{"title":"107\" 4.375\" Stroke \/ 114 cu in \/ 4.08\" \/ +0.143","offer_id":42456831426631,"sku":"DS09106008","price":472.99,"currency_code":"USD","in_stock":true},{"title":"107\" 4.375\" Stroke \/ 117 cu in \/ 4.125\" \/ +0.188","offer_id":42456831459399,"sku":"DS09106009","price":449.99,"currency_code":"USD","in_stock":false},{"title":"107\" 4.375\" Stroke \/ 124 cu in \/ 4.25\" \/ +0.313","offer_id":42456831492167,"sku":"DS09106010","price":472.99,"currency_code":"USD","in_stock":true},{"title":"114\/117\" 4.5\" Stroke \/ 114 cu in \/ 4.016\" \/ STD","offer_id":42456831524935,"sku":"DS09106011","price":472.99,"currency_code":"USD","in_stock":false},{"title":"114\/117\" 4.5\" Stroke \/ 114 cu in \/ 4.020\" \/ +0.005","offer_id":42456831557703,"sku":"DS09106012","price":449.99,"currency_code":"USD","in_stock":false},{"title":"114\/117\" 4.5\" Stroke \/ 117 cu in \/ 4.075\" \/ STD","offer_id":42456831590471,"sku":"DS09106013","price":472.99,"currency_code":"USD","in_stock":true},{"title":"114\/117\" 4.5\" Stroke \/ 118 cu in \/ 4.080\" \/ +0.005","offer_id":42456831623239,"sku":"DS09106014","price":472.99,"currency_code":"USD","in_stock":true},{"title":"114\/117\" 4.5\" Stroke \/ 120 cu in \/ 4.125\" \/ +0.05","offer_id":42456831656007,"sku":"DS09106015","price":472.99,"currency_code":"USD","in_stock":false},{"title":"114\/117\" 4.5\" Stroke \/ 128 cu in \/ 4.250\"\/  +0.175","offer_id":42456831688775,"sku":"DS09106016","price":472.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/5953\/2615\/files\/b5a8ba8e-2503-480c-ab72-d7bb74d7c5a8.jpg?v=1770152598"},{"product_id":"je-pistons-dome-big-bore-piston-set-kits-for-harley-twin-cam-99-17","title":"JE Pistons Dome Big Bore Piston Set Kits for Harley Twin Cam 99-17","description":"\u003cp\u003e\u003cspan\u003eWith a history in racing dating back to 1947, JE Pistons is the industry leader in high-performance powersports forged racing pistons. JE proudly engineers, forges, and machines precision racing pistons for a wide range of powersports machines in-house in the USA.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan\u003eDesigned for riders looking to maximize the power and efficiency of their Harley-Davidson Twin Cam engines, these Big Bore Piston Sets provide the ultimate performance upgrade. Each piston is precision-engineered to withstand the high-stress environment of high-performance riding, ensuring increased durability and optimized power delivery across the RPM range.\u003c\/span\u003e\u003c\/p\u003e\n\n\u003ch4\u003e\u003cspan\u003ePerformance Features:\u003c\/span\u003e\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cspan\u003eForged from premium 2618 aluminum alloy for superior strength-to-weight ratios.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eDome head design engineered to optimize combustion and compression performance.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003ePrecision machined in the USA to exacting tolerances.\u003c\/span\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cspan\u003eAvailable in multiple configurations to suit various big bore engine builds and compression requirements.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003e\u003cspan\u003eGeneral Specifications:\u003c\/span\u003e\u003c\/h4\u003e\n\u003ctable class=\"data table additional-attributes\" id=\"product-attribute-specifications-table\"\u003e\n  \u003ccaption class=\"table-caption\"\u003eStandard Technical Attributes\u003c\/caption\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003cth class=\"col label odd\" scope=\"row\"\u003ePiston Head Type\u003c\/th\u003e\n      \u003ctd class=\"col data odd\"\u003eDome\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth class=\"col label even\" scope=\"row\"\u003ePiston Material\u003c\/th\u003e\n      \u003ctd class=\"col data even\"\u003e2618 Aluminum Alloy\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth class=\"col label odd\" scope=\"row\"\u003ePiston Pin Outside Diameter\u003c\/th\u003e\n      \u003ctd class=\"col data odd\"\u003e0.927\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth class=\"col label even\" scope=\"row\"\u003ePiston Pin Inside Diameter\u003c\/th\u003e\n      \u003ctd class=\"col data even\"\u003e0.627\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth class=\"col label odd\" scope=\"row\"\u003eRetainer Lock Part Number\u003c\/th\u003e\n      \u003ctd class=\"col data odd\"\u003e927-073-MW\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth class=\"col label even\" scope=\"row\"\u003eManufacturing Location\u003c\/th\u003e\n      \u003ctd class=\"col data even\"\u003eUSA\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cspan\u003eNote: Specific attributes such as bore diameter, piston volume, and compression ratio vary by variant. Please select the appropriate configuration for your specific engine application. Most sets include a high-quality ringset and necessary hardware for a complete installation.\u003c\/span\u003e\u003c\/p\u003e","brand":"JE Pistons","offers":[{"title":"99-17 Twin Cam 88\" 96\" Bored to 98\" \/ 98 cu in  9.5:1","offer_id":42456851906631,"sku":"DS09105936","price":345.99,"currency_code":"USD","in_stock":true},{"title":"99-17 Twin Cam 88\" 96\" Bored to 98\" \/ 98 cu in 10.5:1","offer_id":42456851939399,"sku":"DS09105937","price":359.99,"currency_code":"USD","in_stock":true},{"title":"99-06 Twin Cam 88\" Bored  to 95\" \/ 95 cu in 10.5:1","offer_id":42456851972167,"sku":"DS09105935","price":369.99,"currency_code":"USD","in_stock":true},{"title":"07-17 Twin 96\" 103\" Bored to 107\" (Excl Water Cooled) \/ 107 cu in 10.75:1","offer_id":42456852004935,"sku":"DS09105927","price":429.99,"currency_code":"USD","in_stock":true},{"title":"07-17 Twin 96\" 103\" Bored to 107\" (Excl Water Cooled) \/ 107 cu in 10.25:1","offer_id":42456852037703,"sku":"DS09105928","price":429.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/5953\/2615\/files\/10_5_1.jpg?v=1770154028"},{"product_id":"je-pistons-ultra-series-114-117cc-big-bore-piston-kit-for-harley-14-24-fl","title":"JE Pistons Ultra Series 114\/117cc Big Bore Piston Kit for Harley 14-24 FL","description":"\u003cp\u003eElevate your Harley-Davidson's performance with the JE Pistons Ultra Series Piston Kit. Engineered for riders who demand the ultimate in strength and reliability, these pistons are crafted using proprietary aligned grain flow forging technology. This advanced process ensures maximum tensile strength, making them perfectly suited for high-performance environments and demanding riding conditions.\u003c\/p\u003e\n\n\u003cp\u003eEvery aspect of the Ultra Series is designed to optimize engine efficiency and longevity. The pistons feature a ceramic crown coating that acts as a thermal barrier, protecting the component by significantly reducing heat transfer. To ensure a perfect balance between durability and performance, internal and external bracing maintains an optimized strength-to-weight ratio, while 3D undercrown milling removes material from non-critical areas to reduce overall reciprocating mass.\u003c\/p\u003e\n\n\u003cp\u003eFor consistent power delivery, these kits utilize lateral gas ports and an accumulator groove to maintain a superior ring seal, even at high RPM or under boost. The skirt is treated with a specialized coating to minimize friction and wear, while the offset pin design reduces piston rock for quieter engine operation. Designed for a seamless fit, integrated skirt notches provide optimal clearance at the bottom dead center.\u003c\/p\u003e\n\n\u003cul class=\"mb-4 mt-2 pl-3\"\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\"\u003eProprietary aligned grain flow forging technology for maximum tensile strength suited for high performance environments\u003c\/li\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\"\u003eCeramic crown coating protects the piston by reducing heat transfer\u003c\/li\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\"\u003eInternal and external bracing maintains optimized strength-to-weight ratio for longevity\u003c\/li\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\"\u003e3D undercrown milling in non-critical areas reduces overall weight\u003c\/li\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\"\u003eLateral gas ports and accumulator groove maintain power-producing ring seal even at high RPM and high boost\u003c\/li\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\"\u003eSkirt coating reduces operating friction and wear throughout the life of piston\u003c\/li\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\"\u003eOffset pin reduces piston rock and minimizes engine operating noise\u003c\/li\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\"\u003eSkirt notches for optimal clearance at the bottom dead center\u003c\/li\u003e\n\u003cli class=\"feature-bullet font-weight-light ng-star-inserted\"\u003eKit includes two pistons, premium ring pack, wrist pins and wire locks\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JE Pistons","offers":[{"title":"11.25:1 \/ 4.25\"","offer_id":42456855511111,"sku":"DS09106859","price":694.99,"currency_code":"USD","in_stock":true},{"title":"10.25:1 \/ 4.25\"","offer_id":42456855543879,"sku":"DS09106856","price":694.99,"currency_code":"USD","in_stock":true},{"title":"10.25:1 \/ 4.31\"","offer_id":42456855576647,"sku":"DS09106857","price":694.99,"currency_code":"USD","in_stock":false},{"title":"11.25:1 \/ 4.31\"","offer_id":42456855609415,"sku":"DS09106860","price":694.99,"currency_code":"USD","in_stock":false},{"title":"10.25:1 \/ 4.32\"","offer_id":42456855642183,"sku":"DS09106858","price":694.99,"currency_code":"USD","in_stock":false},{"title":"11.25:1 \/ 4.32\"","offer_id":42456855674951,"sku":"DS09106861","price":625.49,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/5953\/2615\/files\/c7d5dc95-06a4-41f5-bc0f-f31b98a20228_v5bt2cxvhx50537w_049c096b-7223-45fe-8904-3d487fcaa01e.jpg?v=1770154336"}],"url":"https:\/\/easternperformance.com\/collections\/je-pistons.oembed","provider":"Eastern Performance Cycles","version":"1.0","type":"link"}