Boundary oil pump gears are 100% manufactured in our Dallas, Texas production facility. We start by quenching our Chromoly billets from extreme heat and then temper it to a tough indestructible core. After machining, we apply our ColdFlow surface hardening process and complete it to a Mirror Finish. What does all this give you? It gives you a pump with stability over 9000 RPM, proven in excess of 1000whp, with higher efficiency, less friction, and backed by one of the industry’s best warranties.
Oil Pump Gear Features
- 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
Part Number: B18-OPG
Application: HONDA B18 I4 1.8L FITS ONLY ORBIT PUMP
Available with MartenWear dual-stage heat treat for operation over 9,000 RPM.