Clevite HS55522 L5P Duramax Top End Gasket Set 2017-2023 6.6L

The Clevite HS55522 is a comprehensive top end gasket set engineered specifically for 2017-2023 GM L5P Duramax 6.6L diesel engines. This complete upper end gasket kit is designed for cylinder head replacement jobs and provides all the necessary gaskets and seals to properly reassemble the top end of your engine.

Kit Includes:

• Upper and lower valve cover seals and gaskets
• Exhaust manifold gaskets
• Up pipe gaskets
• Turbo oil feed and drain gaskets
• EGR cooler and emission gaskets
• Throttle valve and grid heater gaskets
• Coolant crossover and thermostat housing seals
• Y-bridge and intake seals/sealant
• Valve cover grommets
• Valve stem seals
• Water pump and related bypass o-rings

Important Note: Head gaskets and head bolts are not included in this kit and must be purchased separately. This kit is ideal for head gasket replacement jobs where you need all the supporting gaskets and seals for a complete, leak-free reassembly.

Mahle Clevite is a trusted name in engine components, delivering OE-quality gaskets and seals backed by decades of engineering expertise. Always have cylinder heads crack-checked and surfaced by a qualified machine shop prior to installation.