Parts for your 2019 Mitsubishi Asx-Oil pump

2019 Mitsubishi ASX Oil Pump — What It Does and How to Look After It

Technical sources confirm the 2019 Mitsubishi ASX is fitted with an engine oil pump. The Mitsubishi Motors workshop manual for the ASX/RVR/Outlander Sport (4B11/4B12 engines) includes a Lubrication section with oil pump inspection and removal procedures, and the Mitsubishi ASA electronic parts catalogue lists the oil pump as part of the front case (timing cover) assembly. Industry databases such as Autodata and ALLDATA also document an engine-driven trochoid/gerotor oil pump on this model. So yes—this ASX definitely uses an oil pump.

The oil pump is the heart of the ASX’s lubrication system, pushing engine oil under pressure through galleries to the crankshaft, camshafts, balance shafts and valvetrain. Without steady oil pressure, the bearings would run dry, metal temperatures would spike, and the engine would cop serious wear in no time. On the 2019 ASX, the pump is crankshaft-driven and integrated into the front cover, so it responds instantly to engine speed while maintaining stable pressure via an internal relief valve.

Day-to-day, the best way to look after the pump is simply to keep the oil clean and at the right level. Stick to the service schedule for oil and filter changes, and use the correct grade and specification shown in the owner’s handbook. Let the engine build pressure after cold starts—no hard revving straight away—and keep an eye on any warning lights or unusual noises.

• Common tell-tales of oiling issues include a flickering low oil pressure light at idle, top-end ticking, rumbling at start-up, or metallic debris in the drained oil.
• If the sump has been off or the pump replaced, priming the pump and pre-filling the filter helps prevent a dry start.

Oil pump replacement on this ASX isn’t a casual driveway job. It typically involves removing the crank pulley and timing cover, renewing seals and the front case gasket, and torquing fasteners to spec. Because the pump is part of the front cover assembly, many shops replace the cover as a unit. It’s wise to pair the job with timing chain/guides inspection if kilometres are high. After any work, a mechanical gauge check of oil pressure is a good safeguard.

Unless there’s a verified pressure problem or significant internal wear, the oil pump isn’t a routine replacement item. With quality oil, regular servicing, and sensible warm-up, the 2019 ASX’s pump usually gives long, drama-free service.

Popular questions about the 2019 Mitsubishi ASX oil pump

Does the 2019 ASX have a chain-driven oil pump?
The oil pump is driven off the crankshaft and is integrated into the front (timing) cover. Because the crank is chain-driven from the timing system, the pump effectively follows engine speed and provides immediate pressure on start-up.

When should the oil pump be replaced on a 2019 ASX?
There’s no fixed interval. Replacement is considered if verified low oil pressure, excessive internal wear, metal contamination, or front cover damage is found. Many workshops also assess the pump during engine rebuilds or when the front cover is off for major timing work.

What oil should be used to protect the oil pump?
Use the viscosity and specification listed in the owner’s manual for local climate—many ASX owners run modern low-viscosity full-synthetic oils that meet Mitsubishi’s spec. The key is regular changes and a quality filter to keep the pump’s clearances free of sludge and grit.