Parts for your 2013 Subaru Forester-Oil pump

2013 Subaru Forester oil pump — purpose, care and replacement tips

Technical sources confirm the 2013 Subaru Forester is fitted with an engine-driven oil pump. The Subaru Factory Service Manual for the 2013 Forester (Lubrication section: Oil Pump), Subaru’s Technical Information System workshop procedures, and Subaru parts catalogues for both FB25 (2.5-litre NA) and EJ255 (2.5-litre turbo, market-dependent) all show a gerotor/trochoid-style oil pump driven by the crankshaft. So yes—an oil pump is absolutely relevant on this model.

The oil pump on a 2013 Forester pushes pressurised engine oil through galleries to bearings, camshafts and AVCS hardware, keeping friction in check and temperatures under control. Without steady pressure, the big-end and main bearings can cop a hiding in seconds. On FB25 engines, the pump is integrated into the front cover and driven directly off the crank. On EJ255 turbo variants, it’s a bolt-on unit behind the timing belt cover. Different layouts, same job: feed the engine a constant flow of clean oil.

As part of regular servicing, the smartest move is to protect the pump by looking after the oil system as a whole:

• Stick to the service schedule and the viscosity specified in the owner’s manual. Fresh, correct-grade oil and a quality filter help the pump hold pressure and reduce wear.
• Keep the oil level right—check it between services, especially before long trips. Low oil can cause pressure drop and aeration.
• If the sump’s ever off, inspect and replace the pickup O-ring and check the pickup screen for sludge or silicone debris.

When there are signs of trouble—oil pressure warning lamp flicker, top-end clatter on hot idle, or confirmed low pressure on a mechanical gauge—further checks are warranted. On EJ255 engines, replacement usually involves timing belt removal and swapping the pump body, renewing the pump-to-block O-ring, and priming the pump with clean oil before start-up. On FB25 engines, the front cover has to come off, follow the factory procedure for sealant application and torque, and inspect the relief valve and rotor clearances against FSM specs.

Oil pumps aren’t a routine replacement item, but at high kilometres, after an engine rebuild, or if contaminants have circulated (bearing material, severe sludge), a pump inspection or replacement is cheap insurance. A qualified technician with Subaru experience will measure clearances, verify pressure with a gauge, and make the call—keeping that flat-four happily humming for the long haul.

• Does a 2013 Subaru Forester have an oil pump?
  Yes. Both the FB25 non-turbo and market-specific EJ255 turbo engines use a crank-driven gerotor/trochoid oil pump. This is documented in the 2013 Forester Factory Service Manual (Lubrication: Oil Pump) and Subaru parts catalogues.
• When should the oil pump be replaced?
  There’s no fixed interval. It’s typically replaced only if there’s low oil pressure confirmed by a gauge, internal wear out of spec, relief valve issues, or during a rebuild. Good servicing with the correct oil often sees the pump last the life of the engine.
• Is it safe to drive with the oil pressure light on?
  No. Stop the engine immediately and investigate oil level, filter, and pressure. Driving with low pressure can rapidly damage bearings and turbochargers (on EJ255), turning a small fault into a big bill.