Engines and Components Oiling Systems

Dorman

REMAN HP OIL PUMP

$903.29

SKU: D00I 502-557

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Dorman 502-557 is a silver diesel high-pressure oil pump constructed from aluminum, designed to restore proper engine function by maintaining adequate oil pressure. It includes one gasket and has two mounting holes and two ports, ensuring a complete and reliable installation. This pump is an essential component for diesel engines, directly replacing original equipment parts to prevent engine damage caused by insufficient oil pressure.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandDorman
Part NumberD00I 502-557

Videos

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy