Parts for your 2018 Mitsubishi Outlander-Oil pump

2018 Mitsubishi Outlander oil pump: purpose, service and replacement

Technical sources confirm that the 2018 Mitsubishi Outlander is fitted with an engine oil pump across its petrol and hybrid ranges. The Mitsubishi Motors Service Manual (Outlander 2016–2019, Group 11A/11B – Engine Lubrication), the Outlander PHEV Service Manual (Group 11A), and Mitsubishi ASA parts catalogue diagrams for the 2.4L 4B12, 3.0L 6B31, and 2.0L 4B11 engines all depict a crankshaft-driven oil pump as standard equipment. So yes—this model absolutely uses an oil pump, and it’s essential.

The oil pump’s job is to push engine oil under pressure through galleries to bearings, the timing set, and valvetrain so everything stays lubricated and cool. Without the pump building proper pressure, metal-to-metal contact ramps up wear fast, oil temps climb, and the engine can seize. On the Outlander line-up, the pump is a trochoid/gear-type unit integrated at the front of the engine and driven off the crank, designed for long service life with the right oil and filter changes.

For regular servicing, there’s no scheduled replacement interval for the oil pump itself. Focus on high-quality oil that meets the spec stamped in the owner’s/service manual, use a reputable filter, and stick to the time/kilometre schedule—especially if the vehicle tows, runs short trips, or sees dusty conditions. During services, a tech should check for leaks around the front cover, listen for unusual lifter/chain noise on cold start, and scan for low oil-pressure fault codes. If the oil pressure warning light flickers, the engine rattles at idle, or there’s metallic glitter in the oil, get it checked immediately.

If replacement is required, best practice is to inspect the pickup screen for sludge, replace the pump O-rings/seals, and prime the pump with clean oil during installation. After refit, verify pressure with a mechanical gauge and use the correct sealant and torque specs per the Mitsubishi manual. On the PHEV, the internal-combustion engine still relies on the same principle—so the advice above applies just the same.

• Common red flags: low oil pressure light, noisy valvetrain on start-up, bearing knock, oil leaks at the front cover.
• Prevention: timely oil/filter changes, correct viscosity, and fixing leaks early.

Does the 2018 Outlander have an oil pump?
Yes. All 2018 Outlander variants—including the 2.4L 4B12, 3.0L 6B31 V6, and the PHEV’s 2.0L 4B11—use a crank-driven engine oil pump. It’s documented in Mitsubishi’s service manuals and shown in the OEM parts catalogue. It’s a core component of the engine’s lubrication system.

When should the oil pump be replaced?
There’s no routine change interval. It’s replaced when verified low oil pressure is traced to the pump, when there’s internal wear or scoring, or during major engine work if contamination has occurred. Proper diagnosis includes checking oil level/viscosity, filter condition, pressure with a mechanical gauge, and the pickup screen.

What are the signs of a failing oil pump?
The dash oil light flickering at hot idle, noisy top end on start-up, bearing knock under load, metal in the oil, or fault codes for low pressure. Address these immediately—continuing to drive can cause major engine damage.