SKU:12-0859
Upgrade 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.
Its 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.
Machined 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.
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 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.
Upgrade 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.
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