Mercedes Sprinter Right Cylinder Head Gasket – Elring | NCV3 3.0L OM642 | #6420165220 (2007–2022)

A failed right cylinder head gasket on a Sprinter OM642 allows combustion gases to escape between the head and block, coolant to enter the oil, or oil to leak externally — consequences that accelerate damage rapidly and require immediate attention. This is the Elring right cylinder head gasket for NCV3 and VS30 Sprinters equipped with the 3.0L OM642 V6 diesel engine, a direct replacement for the right (passenger side) bank that restores all sealed boundaries between the right cylinder head and engine block.

What This Part Does

The right cylinder head gasket is the multi-layer steel sealing element between the right cylinder head and the engine block, simultaneously sealing three combustion chambers, three sets of oil passages supplying the right bank camshafts and lifters, and three sets of coolant passages that feed the right cylinder head's cooling jacket. The MLS construction uses multiple steel layers with embossed sealing beads around each bore and passage, backed by surface coatings that conform to the machined mating surfaces. When the right head gasket fails, symptoms concentrate on the right bank — compression loss in cylinders 4, 5, or 6, coolant loss to the right combustion chambers, or oil/coolant mixing at the right bank head-to-block seam.

Common Symptoms of a Failed Right Head Gasket

• White exhaust smoke from coolant entering right bank combustion chambers
• Coolant loss without external leak — coolant migrating through failed right bank gasket
• Compression loss on cylinders 4, 5, or 6 confirmed by compression test
• External oil seepage at the right side head-to-block seam
• Overheating from coolant entering the right bank combustion and exhaust stream

When to Replace

Replace whenever the right cylinder head is removed — never reinstall a used head gasket. Resurface both mating faces to specification, replace head bolts with the 0039902522KIT, and torque to the factory angle specification.

NCV3 & VS30 OM642 Specific — Engine Verification Required

This gasket is for the right bank of NCV3 and VS30 Sprinters equipped with the 3.0L OM642 V6 diesel engine. Left and right head gaskets are different parts. Always verify your engine code before ordering.

Fitment

• 2007–2018 Mercedes-Benz / Dodge / Freightliner Sprinter 2500 / 3500 – 3.0L OM642 right bank (NCV3)
• 2019–2022 Mercedes-Benz Sprinter 2500 / 3500 – 3.0L OM642 right bank (VS30)

✔ Right bank only — left bank requires #6420165120
✔ Never reuse a head gasket — replace every time the head is removed
✔ Always resurface mating faces and replace head bolts at the same service

Part Numbers

• Mercedes OEM: 6420165220 / A6420165220 / 642-016-52-20
• Manufacturer: Elring — 475.480
• SKU: 6420165220