RB26 N1 Oil Pump Gear


SKU: RB26N1-OPG Categories: , Tag:

The RB26N1-OPG throws away the weak asymmetrical rotor design and replaces it with Boundary’s own race-inspired symmetrical gear pattern. It is designed to be tighter sealing and created to be a higher volume so it will have a slight uptick in idle pressure and mid-range pressure up to the relief valve limit. It also has the designed crankshaft interface which reduces wear on the crank surfaces and eliminates the need for a crank spline drives. This is a huge benefit as you can simply put the gears in the housing and run them as a stock replacement.


  • Mirror Finished and Surface Hardened
  • Surface Ground gears for the ultimate in fitment and performance
  • Indestructible chromoly core
  • Inner and outer gear machined in matched sets
  • Our own race-inspired gerotor design for flow and strength
  • Each set hand, machine, and hardness inspected with Blueprinting Report
  • Available with our MartenWear thermal processing for extreme anti-wear and tested to 13,000 RPM for reliability.

Part Number RB26N1-OPG Fits:

  • Nissan Skyline GT-R(R32) 1989-1994
  • Nissan Skyline GT-R (R33) 1995-1998
  • Nissan Skyline GT-R (R34) 1999-2002
Weight 1 lbs
Dimensions 8 × 6 × 1 in