This premium valve cover gasket set is specifically designed for ISUZU NRR NQR NPR-HD models with 4HK1 5.2L engines from 2004-2010. Crafted from durable rubber, these gaskets deliver reliable sealing performance under demanding conditions. The set includes both upper and lower gaskets. The robust construction helps prevent oil leaks and maintains proper engine compression. Each set contains all necessary components for a complete valve cover gasket replacement, making it an ideal choice for maintenance and repair work on compatible ISUZU commercial vehicles.