DNJ® Engine Oil Pumps are critical components that circulate oil under pressure throughout the engine to lubricate rotating and sliding parts. These pumps are designed to maintain consistent oil flow, helping prevent friction, wear, and overheating. Each pump includes the housing, internal rotors or gears, and a pressure relief valve to regulate oil pressure under variable operating conditions.
DNJ® Engine Oil Pumps are engineered for durability and precision, featuring robust housings made from cast aluminum or cast iron to resist warping and corrosion under extreme engine temperatures. Inside, high-strength gears or rotors are crafted from hardened steel to provide long-lasting wear resistance and maintain the tight tolerances necessary for efficient oil flow. Each unit includes a pressure relief valve with a steel spring and plunger assembly to regulate system pressure and protect the engine during cold starts or high-speed conditions. Manufactured to meet or exceed OEM quality standards, DNJ® oil pumps deliver reliable performance under demanding conditions.
DNJ® also offers a full line of related lubrication system components, including oil pump repair kits, oil seals, oil pan gaskets, complete gasket sets, timing covers, and more to support engine rebuilds. With precision engineering and top-tier materials, DNJ® Engine Oil Pumps deliver exceptional performance and long-lasting durability.
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DNJ® Engine Timing Covers are essential components that seal the engine’s timing system, protecting critical internal parts from contaminants like dirt, debris, and moisture. These covers are designed to ensure a perfect fit and proper alignment with surrounding components, helping to prevent oil leaks and maintain engine timing accuracy. Depending on the application and timing cover design, some units may include an integrated oil pump. Each DNJ® Engine Timing Cover includes the necessary mounting gaskets or seals, depending on the application, providing a complete solution for proper engine service.
DNJ® Engine Timing Covers are manufactured from high-grade materials such as die-cast aluminum, stamped steel, or durable reinforced plastic. Die-cast aluminum provides excellent structural rigidity, heat dissipation, and corrosion resistance, making it ideal for high-temperature environments. Stamped steel versions offer strong structural integrity and effective sealing properties, while reinforced plastic covers are lightweight and resist thermal expansion and chemical degradation. Each material is carefully selected to meet the performance and longevity requirements of its respective engine design. All DNJ® Engine Timing Covers are manufactured to meet or exceed OEM quality standards.
DNJ® also offers a full range of related timing components, including timing chain kits, timing belt kits, variable valve timing sprockets and solenoids, camshaft seals, crankshaft seals, complete gasket sets, and more. With precision engineering and top-tier materials, DNJ® Engine Timing Covers deliver exceptional performance and long-lasting durability.
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DNJ® Oil Pump Repair Kits are essential for restoring optimal performance to worn or damaged oil pumps without the need for full replacement. These kits typically include critical internal components such as gears, rotors, pressure relief valves, springs, seals, and gaskets—carefully matched to specific applications. Designed for precision fitment and reliable oil circulation, DNJ® Oil Pump Repair Kits offer an efficient, cost-effective solution to extend the life of the engine's lubrication system and ensure proper oil pressure and flow.
Each component within DNJ® Oil Pump Repair Kits is manufactured from high-strength, heat-treated steel alloys, hardened cast iron, and high-grade rubber or synthetic elastomers. Steel and cast-iron components—such as rotors and gears—are selected for their exceptional wear resistance, structural integrity, and ability to maintain tight tolerances under high-temperature, high-pressure conditions. Seals and gaskets are composed of durable rubber or advanced polymers that provide reliable sealing and chemical resistance to engine oil and additives. These materials are used to ensure consistent performance, minimize friction, and extend service life under demanding engine operating environments. All DNJ® Oil Pump Repair Kits are manufactured to meet or exceed OEM quality standards.
DNJ® also offers a full line of related lubrication system components, including complete oil pumps, oil pan gaskets, timing covers, complete gasket sets, and more. With precision engineering and top-tier materials, DNJ® Oil Pump Repair Kits deliver exceptional performance and long-lasting durability.
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DNJ® Engine Oil Pump Drive Gears are essential components designed to transfer rotational energy from the camshaft or crankshaft to the oil pump, enabling precise and consistent oil circulation throughout the engine. These gears are available in various configurations—including spur, helical, and shaft-driven types—to match specific engine designs and deliver optimal oil pressure across all operating conditions. Each gear is precision-machined to ensure proper timing alignment, efficient operation, and dependable lubrication from startup to full engine load.
Manufactured from premium materials such as heat-treated alloy steel, hardened steel, and powdered metal, DNJ® Engine Oil Pump Drive Gears offer exceptional strength, wear resistance, and long-term reliability. These materials are specifically selected to withstand high rotational speeds, thermal cycling, and continuous exposure to engine oil without compromising performance. DNJ® Engine Oil Pump Drive Gears are manufactured to meet or exceed OEM quality standards.
DNJ® also offers a complete line of related oil system components, including oil pumps, timing covers, oil pan gaskets, complete gasket sets, and more. With precision engineering and top-tier materials, DNJ® Engine Oil Pump Drive Gears deliver exceptional performance and long-lasting durability.
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DNJ® Engine Oil Pump Shafts are critical components engineered to deliver reliable rotational power from the engine’s camshaft or crankshaft to the oil pump. By transmitting torque efficiently, they ensure consistent lubrication throughout the engine. Each DNJ® Oil Pump Shaft is designed to match specific OEM configurations and may include coupling features depending on application type. These shafts are precisely machined for a direct fit and optimal performance within the engine’s lubrication system.
Engine oil pump shafts are typically manufactured from high-strength alloy steel or hardened carbon steel, chosen for their exceptional resistance to torsional stress, wear, and fatigue. These materials undergo heat treatment processes such as induction hardening to improve surface hardness and extend operational life. This material composition ensures the shaft remains dimensionally stable under high loads and harsh lubrication conditions. DNJ® Engine Oil Pump Shafts are manufactured to meet or exceed OEM quality standards.
DNJ® also offers a full line of related lubrication system components, including oil pump gears, oil pump repair kits, timing covers, oil pan gaskets, and more. With precision engineering and top-tier materials, DNJ® Engine Oil Pump Shafts deliver exceptional performance and long-lasting durability.
