Mercedes Sprinter Engine Oil Pump – Febi | NCV3 & VS30 3.0L OM642 | #6421801600 (2010–2022)

A failing engine oil pump on a Sprinter OM642 is one of the most catastrophic failures possible — without adequate oil pressure, every bearing, camshaft journal, and turbocharger bearing cartridge in the engine begins running without its protective oil film, and the damage that follows in seconds to minutes is irreversible. This is the Febi engine oil pump for NCV3 and VS30 Sprinters equipped with the 3.0L OM642 V6 diesel engine, a direct replacement that restores full-flow oil circulation and correct oil pressure throughout the engine.

What This Part Does

The engine oil pump is a gear-driven positive displacement pump located in the lower engine and driven directly off the crankshaft. It draws oil from the sump through the pickup tube and strainer, pressurizes it, and delivers it at the required pressure and volume to the main oil gallery, from which it is distributed to every lubricated surface in the engine — main bearings, rod bearings, camshaft lobes, valve train, turbocharger bearing cartridge, and piston cooling nozzles. On the OM642, the oil pump must maintain minimum pressure specifications across the full RPM range from cold idle to full operating temperature — a task complicated by the engine's aluminium block expanding with heat, oil viscosity dropping as temperature rises, and bearing clearances changing across the service life. When the pump's internal gears wear, its body develops clearance gaps from erosion, or its pressure relief valve sticks open, pressure drops — first at idle when demand is lowest, then progressively under load.

Common Symptoms of a Failing Engine Oil Pump

• Low oil pressure warning light, particularly at idle and hot — a critical warning requiring immediate engine shutdown
• Oil pressure that recovers at higher RPM but drops again at idle — a classic worn pump symptom
• Ticking or knocking from the valvetrain at idle from inadequate lubrication
• Turbocharger noise or failure from the bearing cartridge losing oil pressure at idle
• Metallic particles found in engine oil from bearing surfaces running at reduced pressure

When to Replace

Replace when oil pressure testing confirms the pump cannot meet minimum specification at operating temperature and idle RPM, after ruling out oil level, oil viscosity, oil filter restriction, and pressure relief valve as the fault source. Also replace during any engine bottom-end rebuild — an oil pump with unknown service history on a freshly rebuilt engine is an unacceptable risk. Always replace the oil pump pickup tube o-ring and inspect the pickup screen when replacing the pump.

NCV3 & VS30 OM642 Specific — VIN Verification Required

This oil pump is for NCV3 and VS30 Sprinters equipped with the 3.0L OM642 V6 diesel engine. Always verify your engine code and VIN before ordering. Contact us and we'll confirm fitment before you buy.

Fitment

• 2010–2018 Mercedes-Benz Sprinter 2500 / 3500 – 3.0L OM642 (NCV3/W906)
• 2010–2018 Freightliner Sprinter 2500 / 3500 – 3.0L OM642 (NCV3)
• 2019–2022 Mercedes-Benz Sprinter 2500 / 3500 – 3.0L OM642 (VS30/W907)

✔ Always replace oil pump pickup o-ring and inspect pickup screen during installation
✔ Always verify VIN — oil pump configurations may vary by build date

Part Numbers

• Mercedes OEM: 6421801600 / A6421801600 / 642-180-16-00
• Cross-reference: 6421802101
• Manufacturer: Febi — 47758
• SKU: 6421801600F