{"product_id":"je-pistons-ultra-series-piston-kit-09106856","title":"JE PISTONS Ultra Series Piston Kit","description":"\u003cp\u003e\u003cstrong\u003eJE PISTONS Ultra Series Piston Kit\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eJE PISTONS Ultra Series Piston Kit by JE PISTONS is a engine parts listing built for riders searching by exact product name, fitment, style, and part number.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePropriety aligned grain flow forging technology for maximum tensile strength suited for high performance enviroment\u003c\/li\u003e\n\u003cli\u003eCermic crown coating protects the piston by reducing heat transfer\u003c\/li\u003e\n\u003cli\u003eInternal and external bracing maintains optimized strength-to-weight ratio for longevity\u003c\/li\u003e\n\u003cli\u003e3D undercrown milling in non-critical areas reduces overall weight\u003c\/li\u003e\n\u003cli\u003eLateral gas ports and accumulator groove maintain power-producing ring seal even at high RPM and high boost\u003c\/li\u003e\n\u003cli\u003eTuff Skirt is a propriety, moly based dry film skirt coating that is applied in-house and reduces operating friction for better wear resistance\u003c\/li\u003e\n\u003cli\u003eOffset pin reduces piston rock and minimize engine operating noise\u003c\/li\u003e\n\u003cli\u003eSkirt notches for optimal clearance at the bottom dead center\u003c\/li\u003e\n\u003cli\u003eKit includes two pistons, premium ring pack, wrist pins and wire locks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePart Numbers\u003c\/h3\u003e\u003cp\u003e0910-6856, 394138, 0910-6859, 391731, 0910-6857, 394139, 0910-6860, 394100, 0910-6858, 394140, 0910-6861, 391730\u003c\/p\u003e\n\u003ch3\u003eAvailable Styles\u003c\/h3\u003e\u003cp\u003ePiston Kit \/ 4.250\" \/ 10.25:1 CR \/ 114\"\/117\" M8; Piston Kit \/ 4.250\" \/ 11.25:1 CR \/ 114\"\/117\" M8; Piston Kit \/ 4.310\" \/ 10.25:1 CR \/ 114\"\/117\" M8; Piston Kit \/ 4.310\" \/ 11.25:1 CR \/ 114\"\/117\" M8; Piston Kit \/ 4.320\" \/ 10.25:1 CR \/ 114\"\/117\" M8; Piston Kit \/ 4.320\" \/ 11.25:1 CR \/ 114\"\/117\" M8\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAvailable options:\u003c\/strong\u003e 6\u003c\/p\u003e","brand":"JE PISTONS","offers":[{"title":"Piston Kit \/ 4.250\" \/ 10.25:1 CR \/ 114\"\/117\" M8","offer_id":44049375821911,"sku":"09106856","price":729.99,"currency_code":"USD","in_stock":true},{"title":"Piston Kit \/ 4.310\" \/ 10.25:1 CR \/ 114\"\/117\" M8","offer_id":44049375854679,"sku":"09106857","price":729.99,"currency_code":"USD","in_stock":true},{"title":"Piston Kit \/ 4.320\" \/ 10.25:1 CR \/ 114\"\/117\" M8","offer_id":44049375887447,"sku":"09106858","price":729.99,"currency_code":"USD","in_stock":true},{"title":"Piston Kit \/ 4.250\" \/ 11.25:1 CR \/ 114\"\/117\" M8","offer_id":44049375920215,"sku":"09106859","price":682.99,"currency_code":"USD","in_stock":true},{"title":"Piston Kit \/ 4.310\" \/ 11.25:1 CR \/ 114\"\/117\" M8","offer_id":44049375952983,"sku":"09106860","price":729.99,"currency_code":"USD","in_stock":true},{"title":"Piston Kit \/ 4.320\" \/ 11.25:1 CR \/ 114\"\/117\" M8","offer_id":44049375985751,"sku":"09106861","price":729.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0644\/4928\/2135\/files\/je-pistons-ultra-series-piston-kit-1.png?v=1784406259","url":"https:\/\/parts4motorcycles.com\/products\/je-pistons-ultra-series-piston-kit-09106856","provider":"Parts4Motorcycles","version":"1.0","type":"link"}