The HKS 15003-AN001 High-Performance Oil Pump is a premium upgrade designed for the Nissan RB26DETT engine. Engineered to handle the increased demands of high-revving and high-horsepower applications, this oil pump improves lubrication reliability and addresses one of the RB26’s most well-known weak points—OEM oil pump gear failure at high RPM.

Unlike the factory unit, the HKS oil pump features a precision-machined, high-strength billet gear that is both thicker and stronger, reducing the risk of gear breakage at elevated engine speeds. It also increases oil flow and pressure to critical engine components, ensuring stable operation under extreme performance conditions such as track use or high-boost setups.

• Application: Nissan RB26DETT (Skyline GT-R R32 / R33 / R34)
• Part Number: 15003-AN001
• Stronger, wider billet oil pump gear to prevent failure at high RPM
• Increased oil volume and pressure for improved engine lubrication
• Direct bolt-on replacement for the factory oil pump
• Ideal for engines revving beyond 8,000 RPM
• Made in Japan

This oil pump is highly recommended for any RB26 engine build exceeding OEM rev limits or power levels. Whether you're building a circuit machine or a high-boost street car, the HKS 15003-AN001 provides the reliability and performance needed to keep your RB26 healthy under pressure.