{"product_id":"sifton-oil-pump-part-12-0859-for-harley-davidson-fxst-flst-models","title":"Sifton Oil Pump 12-0859 for Harley-Davidson FXST FLST","description":"\u003cdiv\u003e\n\u003ch1\u003eSifton Oil Pump 12-0859 for Harley-Davidson FXST\/FLST (1992–1998)\u003c\/h1\u003e\n\u003cp\u003eUpgrade your Harley‑Davidson with the Sifton Oil Pump Part 12-0859, engineered to deliver superior oil flow and pressure for optimal engine performance. Its gerotor compact cad‑cam design and billet aluminum construction improve scavenging and feed flow, helping prevent crankcase wet‑sumping.\u003c\/p\u003e\n\u003cp\u003eIts inner and outer rotor system replaces conventional gears, providing a significantly increased oil supply. It delivers more than 150% of the volume on the pressure side and a 450% increase on the return side, ensuring ample lubrication even at high RPMs.\u003c\/p\u003e\n\u003cp\u003eMachined from 6061 T651 billet aluminum, each pump is individually inspected and polished for durability and a brilliant finish. The return outlet is positioned on top and the feed on the bottom to facilitate straightforward installation. The unit includes hardware, a gasket, and fittings compatible with rubber hoses for a secure fit.\u003c\/p\u003e\n\u003cp\u003eWith an oil pressure of 100 PSI when cold, regulated to 23 PSI at 3000 RPM and 12 PSI at idle, this pump maintains consistent lubrication across a wide range of operating conditions. It helps combat oil cavitation and starvation in V‑Twin engines at idle and under high heat, making it ideal for high‑performance riding. Fits Harley‑Davidson FXST, FLST, FXD, FXR, and FLT models from 1992 to 1998. For installation guidance, refer to online instructions, and consider pairing with recommended accessory items like oil pump snap rings and pressure sender tools. Part numbers include 12-0859 and 301507.\u003c\/p\u003e \u003ch2\u003eKey specifications\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eRotor design: inner and outer rotor (gerotor)\u003c\/li\u003e \u003cli\u003eMaterial: 6061 T651 billet aluminum\u003c\/li\u003e \u003cli\u003eOil flow: \u0026gt;150% on the pressure side; ~450% on the return side\u003c\/li\u003e \u003cli\u003eOil pressure: 100 PSI cold; 23 PSI at 3000 RPM; 12 PSI at idle\u003c\/li\u003e \u003cli\u003eReturn outlet: top; Feed: bottom\u003c\/li\u003e \u003cli\u003eIncludes: hardware, gasket, fittings compatible with rubber hoses\u003c\/li\u003e \u003cli\u003eCompatibility: Harley-Davidson FXST, FLST, FXD, FXR, FLT, 1992–1998\u003c\/li\u003e \u003cli\u003ePart numbers: 12-0859; 301507\u003c\/li\u003e\n\u003c\/ul\u003eSifton oil pump features gerotor compact cad-cam design billet aluminum construction superior scavenging and increased feed flow rate which eliminates wet-sumping in crankcase.\n\u003cp\u003eUpgrade your Harley Davidson engine with the Sifton Oil Pump Part 12-0859, engineered to deliver superior oil flow and pressure for optimal engine performance. This high-performance oil pump features a unique internal gear system that replaces conventional gears with an inner and outer rotor design, providing significantly increased oil supply. It supplies more than 150% of the volume on the pressure side and an incredible 450% increase on the return side, ensuring your engine receives ample lubrication even at high RPMs. Constructed from durable 6061 T651 billet aluminum, each pump is individually inspected and polished to a brilliant finish, guaranteeing both reliability and aesthetic appeal. The pump includes hardware, with the return outlet positioned on top and the feed on the bottom, facilitating straightforward installation. With an oil pressure of 100 PSI when cold, regulated to 23 PSI at 3000 RPM and 12 PSI at idle, this pump maintains consistent lubrication across a wide range of operating conditions. It is designed to combat oil starvation common in V-Twin engines, especially at idle and under high heat, making it ideal for high-performance applications. The unit comes with a gasket and fittings compatible with rubber hoses, ensuring a secure fit. Whether your motorcycle is used for daily riding or aggressive performance riding, this oil pump helps prevent cavitation and oil starvation, maintaining engine health and longevity. The Sifton Oil Pump is a reliable upgrade for Harley Davidson FXST and FLST models from 1992 to 1998, providing peace of mind and enhanced engine efficiency. For installation guidance, consult the detailed instructions available online, and consider pairing this pump with recommended accessory items like oil pump snap rings and pressure sender tools to complete your upgrade.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\u003cli\u003eInner and outer rotor design replaces conventional gears for increased oil flow\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eSupplies over 150% oil volume on pressure side and 450% on return side\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eMachined from high-quality 6061 T651 billet aluminum for durability\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eIndividually inspected and polished for a flawless finish\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eRegulated oil pressure: 23 PSI at 3000 RPM, 12 PSI at idle\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eIncludes hardware, gasket, and fittings for easy installation\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eDesigned to prevent oil cavitation and starvation at high RPMs\u003c\/li\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003cli\u003eCompatible with Harley Davidson FXST and FLST models from 1992-1998\u003c\/li\u003e\u003c\/ul\u003e\n\u003cbr\u003e\nFitment:\u003cbr\u003e\nHarley Davidson FLST 1992\u003cbr\u003e\nHarley Davidson FLST 1993\u003cbr\u003e\nHarley Davidson FLST 1994\u003cbr\u003e\nHarley Davidson FLST 1995\u003cbr\u003e\nHarley Davidson FLST 1996\u003cbr\u003e\nHarley Davidson FLST 1997\u003cbr\u003e\nHarley Davidson FLST 1998\u003cbr\u003e\nHarley Davidson FLT 1992\u003cbr\u003e\nHarley Davidson FLT 1993\u003cbr\u003e\nHarley Davidson FLT 1994\u003cbr\u003e\nHarley Davidson FLT 1995\u003cbr\u003e\nHarley Davidson FLT 1996\u003cbr\u003e\nHarley Davidson FLT 1997\u003cbr\u003e\nHarley Davidson FLT 1998\u003cbr\u003e\nHarley Davidson FXD 1992\u003cbr\u003e\nHarley Davidson FXD 1993\u003cbr\u003e\nHarley Davidson FXD 1994\u003cbr\u003e\nHarley Davidson FXD 1995\u003cbr\u003e\nHarley Davidson FXD 1996\u003cbr\u003e\nHarley Davidson FXD 1997\u003cbr\u003e\nHarley Davidson FXD 1998\u003cbr\u003e\nHarley Davidson FXR 1992\u003cbr\u003e\nHarley Davidson FXR 1993\u003cbr\u003e\nHarley Davidson FXR 1994\u003cbr\u003e\nHarley Davidson FXST 1992\u003cbr\u003e\nHarley Davidson FXST 1993\u003cbr\u003e\nHarley Davidson FXST 1994\u003cbr\u003e\nHarley Davidson FXST 1995\u003cbr\u003e\nHarley Davidson FXST 1996\u003cbr\u003e\nHarley Davidson FXST 1997\u003cbr\u003e\nHarley Davidson FXST 1998\u003c\/div\u003e","brand":"Sifton","offers":[{"title":"Default Title","offer_id":44650899963946,"sku":"12-0859","price":263.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2285\/8794\/files\/12-0859a.jpg?v=1785825921","url":"https:\/\/atticusgoods.com\/products\/sifton-oil-pump-part-12-0859-for-harley-davidson-fxst-flst-models","provider":"Atticus Goods","version":"1.0","type":"link"}