Boundary Engineering Stage One oil pumps utilize a factory OEM Mazda Oil Pump housing, and have their billet gear set pre-assembled inside in order to strengthen the pump, making it a drop-in replacement upgrade.
All parts under go ultrasonic, air blast, and hand inspection
Gear set is cut in house from 4140 chromoly steel billet
Parts are blue printed and issued with specification sheet
The sintered gears inside of a stock oil pump assembly only rates to about 6KSI of stress before shattering. These gears provide a serious structural upgrade to 90Ksi steel. The gears match the specification of a 91.5-00 oil pump housing.
Shatterproof stock replacement gear sets
Machined from hardened 4140 Chromoly Billets
Each unit inspected electronically and by hand
Machine de-burred and touch up de-bur by hand
Individually numbered and logged into our database