Engine Oil Pump

The DNJ OP174 oil pump is a crucial component engineered for circulating oil under pressure, ensuring proper lubrication for all rotating and sliding engine parts. Its primary function is to prevent friction, wear, and overheating by maintaining a consistent oil flow throughout the engine's operational range. Constructed with durability and precision in mind, the DNJ OP174 features a robust housing, typically made from cast aluminum or cast iron, to resist warping and corrosion even at extreme engine temperatures. Inside, high-strength gears or rotors made from hardened steel ensure long-lasting wear resistance and maintain the precise tolerances required for efficient oil circulation. It also includes a pressure relief valve with a steel spring and plunger assembly, which regulates system pressure, protecting the engine during cold starts and high-speed operation. DNJ also offers a comprehensive range of related lubrication system components, including oil pump repair kits, oil seals, oil pan gaskets, complete gasket sets, and timing covers, supporting complete engine rebuilds. The OP174 oil pump is backed by a 12-month or 12,000-mile warranty, whichever comes first.