{"product_id":"84-99-harley-evo-revolution-performance-100-piston-kit-9-5-1-new-rp301-214w","title":"84-99 HARLEY EVO REVOLUTION PERFORMANCE 100\" PISTON KIT 9.5:1 | NEW | RP301-214W","description":"\u003ch2\u003e1984-1999 Harley-Davidson Evolution Revolution Performance 100\" Big Bore Piston Kit | 9.5:1 Flat Top | NEW | Part #RP301-214W\u003c\/h2\u003e\n\n\u003cp\u003eOffered here is a brand new genuine Revolution Performance 100\" big bore piston kit, \u003cb\u003ePart #RP301-214W\u003c\/b\u003e, also sold as Drag Specialties \u003cb\u003ePart #0910-6387\u003c\/b\u003e. This is the replacement piston kit for the Revolution Performance 100\" Bolt-On Big Bore Kit on Harley-Davidson Evolution Big Twin engines. It is built for a 3-7\/8\" bore with the stock 4-1\/4\" Evo stroke, and its flat-top pistons produce a street-friendly 9.5:1 compression ratio. Use it to freshen up or rebuild a 100\" Revolution top end.\u003c\/p\u003e\n\n\u003cp\u003e\u003cb\u003eConfirmed Fitment – Part #RP301-214W:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1984-1999 Harley-Davidson Evolution Big Twin engines equipped with Revolution Performance 100\" Bolt-On Big Bore cylinders\u003c\/li\u003e\n\u003cli\u003e1984-1999 Harley-Davidson Softail Evolution models\u003c\/li\u003e\n\u003cli\u003e1991-1998 Harley-Davidson Dyna Evolution models\u003c\/li\u003e\n\u003cli\u003e1984-1998 Harley-Davidson Touring FLH \/ FLT Evolution models\u003c\/li\u003e\n\u003cli\u003e1984-1994 Harley-Davidson FXR Evolution models\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eRequired:\u003c\/b\u003e Revolution Performance Big Bore cylinders. Not recommended for cast-iron or ductile-sleeved cylinders\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cb\u003eProduct Highlights:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e100% Genuine Revolution Performance – Part #RP301-214W\u003c\/li\u003e\n\u003cli\u003eDrag Specialties cross-reference – Part #0910-6387\u003c\/li\u003e\n\u003cli\u003e100\" displacement\u003c\/li\u003e\n\u003cli\u003e3-7\/8\" bore size\u003c\/li\u003e\n\u003cli\u003e4-1\/4\" stroke length\u003c\/li\u003e\n\u003cli\u003e9.5:1 compression ratio\u003c\/li\u003e\n\u003cli\u003eFlat-top piston head design\u003c\/li\u003e\n\u003cli\u003eCustom-forged pistons made from high-strength aluminum alloy\u003c\/li\u003e\n\u003cli\u003eSkirt-coated pistons with high-tension compression rings and 3mm oil scraper rails\u003c\/li\u003e\n\u003cli\u003eOffset pin design for smoother operation\u003c\/li\u003e\n\u003cli\u003eBuilt for greater operating strength and lower expansion at high temperatures\u003c\/li\u003e\n\u003cli\u003eStreet riding style\u003c\/li\u003e\n\u003cli\u003eMade in the U.S.A.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cb\u003eWhat Is Included:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRevolution Performance piston kit, Part #RP301-214W: pistons with skirt coating, rings, chrome piston pins, and retainer clips\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cb\u003eSearch Keywords:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eRP301-214W, RP301214W, 0910-6387, 9106387, Revolution Performance piston kit, Revolution Performance 100 inch piston kit, Evo 100 big bore pistons, Harley Evolution big bore piston kit, 3-7\/8 bore piston kit Evo, 9.5:1 flat top piston kit, Softail Evo 100 inch pistons, Dyna Evo big bore pistons, FXR Evo 100 inch pistons, Touring Evo big bore pistons, Drag Specialties 0910-6387, forged big bore pistons Harley Evo\u003c\/p\u003e\n\n\u003cp\u003ePlease confirm \u003cb\u003ePart #RP301-214W\u003c\/b\u003e fits your motorcycle and cylinder setup prior to purchase. Your order ships quickly and securely with full tracking from our warehouse. Buy with confidence: this is genuine Revolution Performance, brand new, and shipped from inventory we have on hand.\u003c\/p\u003e","brand":"Revolution Performance","offers":[{"title":"Default Title","offer_id":51369674146035,"sku":"24257","price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1554\/9009\/files\/2026_09_15_aa_9999_135.jpg?v=1789539874","url":"https:\/\/www.nosoemparts.com\/products\/84-99-harley-evo-revolution-performance-100-piston-kit-9-5-1-new-rp301-214w","provider":"NOSOEMPARTS","version":"1.0","type":"link"}