Cylinder Head Gasket Kit – 6420165120SET | Mercedes Sprinter OM642 Head Gasket Set

SKU: 6420165120SET - qty 1

Ensure a proper, leak-free head seal for your Mercedes Sprinter’s engine with this Cylinder Head Gasket Kit – part #6420165120SET. This complete head gasket set (often referenced under 6420165120) is engineered for the OM642 3.0 L V6 diesel engine, providing all necessary gaskets that seal the junction between the engine block and cylinder heads. The head gasket is one of the most critical gaskets in your engine — it maintains combustion chamber pressure, isolates coolant passages from oil passages, and prevents leaks. When worn or damaged, head gaskets can lead to overheating, coolant and oil mixing, and engine performance issues. Using a quality gasket kit during a head service rebuild ensures long-term reliability and proper sealing. 

✔ OEM-Style Head Gasket Set

• Matches and replaces Mercedes-Benz part 6420165120 / 6420165120SET for correct fit and sealing performance on Sprinter OM642 diesel engines. 

• Made to seal the combustion chambers and fluid passages between the aluminum engine block and cylinder heads. 

✔ Critical Engine Protection Component

• Prevents coolant from entering oil galleries and keeps engine oil from leaking into the cooling system — protecting internal engine components. 

• Helps maintain proper compression and engine temperature control, both essential for smooth operation and fuel efficiency. 

✔ Ideal for Repairs & Rebuilds

• Perfect for top-end engine rebuilds, head removal, or head bolt replacement services. 

• Recommended to always install new head gaskets anytime the head is removed to avoid future leaks or failures. 

📌 Fitment Tip: This kit corresponds to the head gasket set for the OM642 diesel engine (common in Sprinter 2500/3500 from ~2010–2021) — verify your VIN/engine match before ordering.