Parts for your 2010 Mitsubishi Lancer-Oil pump

2010 Mitsubishi Lancer Oil Pump — What It Does and When to Service It

Yes—the 2010 Mitsubishi Lancer is fitted with an engine oil pump. Mitsubishi’s Lancer CJ workshop manual (Engine Lubrication section) details a crankshaft‑driven trochoid/gerotor pump for the 4B11/4B12 engines, and the OEM parts catalogue lists complete oil pump/front case assemblies across the 1.5–2.4‑litre range. General repair guides such as the Haynes Lancer manual also include oil‑pump service procedures, so it’s very much a real, serviceable component.

The oil pump’s day job is to pull engine oil from the sump, pressurise it, and push it through galleries to bearings, camshafts, and the MIVEC hardware. On most CJ Lancers it’s integrated into the front cover and driven directly off the crank, so pressure builds as soon as the starter spins. Without a healthy pump, metal would meet metal under the bonnet in a matter of seconds.

Owners should watch for a flickering oil warning lamp, rattly cold starts, valve‑train tick, low oil‑pressure fault codes, or metallic glitter on the dipstick and in the filter. These aren’t always the pump’s fault—thin or wrong‑spec oil, a clogged pickup screen, or worn bearings can mimic pump issues—but they’re the cues to stop driving and have pressure tested with a mechanical gauge.

As part of regular servicing, the best way to look after the Lancer’s oil pump is simple: keep the oil clean and the pickup clear. Stick to the logbook interval (typically 15,000 kilometres or 12 months in Aus/NZ, halved for harsh use) and use the grade specified in the owner’s manual. Replace the filter every service, check for leaks at the front cover, and listen for timing‑chain drive noise that could hint at wear.

Replacement isn’t routine