HKS Oil Pump Upgrade

1989–2002 Nissan Skyline GT-R 2.6L RB26

Part #: 15003-AN001

Overview

The HKS Oil Pump Upgrade for the RB26 engine is designed to enhance the durability and oil flow capacity of your Nissan Skyline GT-R. Engineered specifically for high-performance applications, this upgrade ensures your tuned engine receives a reliable and increased oil supply, which is critical for maintaining optimal engine health under demanding conditions. Whether you're pushing your GT-R on the street or at the track, this oil pump upgrade helps support the increased demands of high horsepower builds and spirited driving.

Constructed with precision and quality, the HKS Oil Pump Upgrade offers a dependable solution for enthusiasts seeking improved oil circulation and pressure stability. Its robust design helps prevent oil starvation during aggressive driving, ensuring your engine components are well-lubricated and protected during high-RPM operation. This upgrade is ideal for those who are modifying their RB26-powered Nissan GT-R for increased performance and require a durable, high-capacity oil pump that maintains consistent oil flow.

Key Features

The HKS Oil Pump Upgrade incorporates several advanced features to improve your engine's oiling system:

• Durable, high-quality construction with a redesigned case shape that enhances overall durability and oil flow capacity.
• Increased rotor size compared to the stock pump, resulting in a higher volume of oil being circulated through the engine.
• Adjustable oil relief pressure, allowing fine-tuning of oil pressure to match your engine's specific tuning and performance needs (note: the alternator must be removed for adjustment).
• Utilizes outer shim design for easy and precise adjustment of oil pressure, ensuring optimal lubrication under various operating conditions.
• Engineered specifically for the RB26 engine found in Nissan Skyline GT-R models from 1989 to 2002, ensuring perfect fitment and compatibility.
• Manufactured by HKS, a trusted name in high-performance automotive parts, known for quality and reliability.
• Designed to withstand high-stress conditions typical of tuned engines, providing long-lasting performance and peace of mind.
• Improves oil flow amount compared to the factory pump, supporting increased horsepower and engine modifications.

Construction & Design

The HKS Oil Pump Upgrade features a newly designed case shape that not only enhances durability but also optimizes oil flow efficiency. The larger rotor diameter increases the volume of oil pumped per revolution, which is essential for high-performance and heavily modified engines. The pump's construction utilizes high-grade materials and precision manufacturing techniques to ensure consistent operation and longevity.

The adjustable relief pressure mechanism is integrated using an outer shim design, allowing users to tailor oil pressure to their specific engine setup. This flexibility is particularly beneficial for engines with modified oil galleries or those running higher boost levels, where maintaining proper oil pressure is crucial for engine longevity. The pump is designed for straightforward installation, with no need for extensive modifications, making it a reliable upgrade for enthusiasts and professional tuners alike.

Installation & Fitment

The HKS Oil Pump Upgrade is a direct bolt-on replacement for the factory oil pump on the RB26 engine. Installation involves removing the existing pump and replacing it with the upgraded unit, with the optional adjustment of oil relief pressure via the outer shim. The process requires the removal of the alternator to access the relief pressure adjustment mechanism. No additional modifications or tuning are necessary for basic installation, but it is recommended to verify oil pressure settings after installation for optimal performance.

• Designed specifically for the Nissan Skyline GT-R RB26 engine from 1989 to 2002.
• Installation typically requires standard hand tools and basic mechanical knowledge.
• Adjustable relief pressure allows customization to your engine's tuning requirements.

Note: The alternator must be removed to adjust the oil relief pressure. Proper reassembly and verification of oil pressure are recommended after installation.

What's Included

• HKS Oil Pump Upgrade unit with redesigned case and larger rotor
• Adjustment shim for oil relief pressure tuning
• Installation hardware and instructions

Ideal For

• High-performance Nissan Skyline GT-R owners
• Enthusiasts building or tuning RB26 engines for increased horsepower
• Track day and racing applications requiring reliable oil circulation under demanding conditions
• Engine builders seeking durable, high-capacity oil pumps for modified engines