Keep your Isuzu engine running smoothly with this comprehensive set of 16 valve oil seals designed specifically for NRR, NQR, NPR-HD, and NPR models equipped with the 4HK1 5.2L engine (2007-2025). These precision-engineered seals are manufactured to exact specifications to ensure proper fit and optimal performance. Each seal features durable construction to effectively prevent oil leakage and maintain proper engine compression. The complete set provides 16 seals for a full replacement job, helping maintain your engine's efficiency and longevity. These valve oil seals play a crucial role in regulating oil consumption and protecting your engine's valve system. Professional installation is recommended to ensure proper seating and alignment of these essential engine components. Compatible with various Isuzu commercial truck applications, these replacement seals help maintain your vehicle's reliability and performance.