Boundary RB26N1-OPG Billet Oil Pump Gear Set for Nissan RB26 N1 Housing

Vehicle Fitment

• Nissan Skyline GT-R R32 / R33 / R34 - RB26DETT using N1-style oil pump housing

Features

• Symmetrical gerotor gear design for consistent sealing and improved oil flow
• Billet chromoly construction for high strength and durability
• Surface-hardened and mirror-polished gear surfaces to reduce wear
• Precision ground inner and outer gears for tight tolerances
• Matched gear set for optimal meshing and stable pressure
• Gear set is inspected and blueprint-verified for quality
• Optional heat-treated (MartenWear) version available for extreme builds
• Engineered for high RPM stability in tuned or race applications

Specifications

• Part Number: RB26N1-OPG
• Material: Chromoly steel (billet)
• Gear Type: Gerotor inner + outer
• Compatibility: N1 77 mm oil pump housing
• Weight: Approximately 1 lb

Included Components

• 1x Inner gerotor gear
• 1x Outer gerotor gear

Product Description

The **Boundary RB26N1-OPG** is a high-performance upgrade for the RB26DETT engine using the N1-style (77 mm) oil pump housing. Its symmetrical gerotor design ensures better sealing and oil flow compared to traditional asymmetrical gears, making it ideal for tuned or high-RPM engines.

Built from billet chromoly steel, the gears are designed to withstand high loads while minimizing wear. The surfaces are hardened and polished for efficiency, and the matched gear set ensures consistent performance. A MartenWear-treated variant is offered for even more durability, making this part a top choice for high-power RB26 builds where reliable oil delivery is essential.