Parts for your 2016 Subaru Exiga-Oil pump

2016 Subaru Exiga oil pump — what it does and how to look after it

Relevant technical sources confirm the 2016 Subaru Exiga does use an engine oil pump. The Subaru Factory Service Manual (FB25 engine lubrication section), Subaru’s Technical Information System documentation, and the Subaru FAST electronic parts catalogue all show a crankshaft-driven, gerotor-style oil pump integrated into the front timing cover on FB-series engines. Earlier EJ-series Exiga variants also feature a trochoid pump on the crank nose. So, for a 2016 Exiga (including the Crossover 7), the oil pump is very much present and essential.

The oil pump’s whole job is to pick up engine oil from the sump and push it under pressure through the galleries to bearings, camshafts, and the timing gear. On the 2016 Exiga’s FB25, it’s built into the front cover and driven directly by the crank, with a pressure relief valve to stop over-pressure at high revs. Without healthy oil pressure, bearings wear, cams score, and the engine can cry enough in a hurry.

As part of regular servicing, the pump itself isn’t a scheduled replacement item, but it relies on clean, correct-spec oil. Sticking to high-quality oil and filter changes at about 10,000 km or 12 months (whichever comes first), using the viscosity Subaru specifies for local climate (commonly 0W-20 or 5W-30 in AU/NZ), massively extends pump and engine life. A good workshop will also check for front cover seepage, listen for timing-end rattles, and pay attention to the oil pressure warning lamp behaviour after hot restarts.

Replacement is considered when there’s persistently low oil pressure (verified with a mechanical gauge), metallic contamination in the sump, a scored pump housing, or if the front timing cover is off for major work and there’s measurable pump wear. For the FB25, that means removing ancillaries, the front cover, and following the FSM precisely. Key tips seasoned Subaru techs live by include:

• Prime the new pump with clean oil before fitting.
• Use the correct liquid gasket/sealant pattern on the front cover and replace any O-rings for the pickup and passages.
• Follow factory torque specs and sequence