ACL Subaru EJ Performance Oil Pump OPSB1478HP

ACL OPSB1478HP is an engine oil-pump assembly for Subaru EJ20/EJ22/EJ25; exact engine check required. Select the pump by its exact application and mounting interfaces before installation.

Application and Compatibility

ACL lists EJ20, EJ22 and EJ25 engine-family applications. Confirm the exact engine generation, crankshaft interface, cover and pickup arrangement.

Compare the original pump and current installation instructions for the crankshaft drive, front-cover bolt pattern, oil passages, pickup connection and seal arrangement. Engine swaps and market changes can affect compatibility. This pump is a separate oiling component; it is not an engine bearing set.

Specifications

Installation

Follow the engine and pump installation instructions for inspection, priming, seal preparation and final oil-pressure checks. Select supporting gaskets, pickup components and fasteners for the exact engine configuration.

Frequently Asked Questions

How do I identify the correct pump? Match OPSB1478HP to the engine and drive configuration, then compare every mounting and oil-passage interface.

Does this include engine bearings? No. This listing is for the specified oil-pump assembly.

Related Engine Parts

Shop ACL engine components, engine bearings and oil pumps.