The Cummins S3.8 Overhauling Gasket Set & Ringset is a replacement part specifically designed for the Cummins 12-Valve diesel engine. This set includes both the gasket set and ringset needed for a complete overhaul of the cylinder head. With 8 valves and compatibility with Cummins equipment, this part is essential for maintaining the engine’s performance and sealing combustion chambers. This product is a reliable choice for heavy equipment owners looking to keep their engines in top condition.