Boundary Oil Pump Assembly for Ford/Mazda I4 91.5-05 72 PSI 2 Shims

Boundary Oil Pump Assembly for Ford & Mazda I4 (1991.5–2005) — 72 PSI, 2 Shims Fitment: Designed for Ford and Mazda 4-cylinder BP engines (1991.5–2005). Direct-replacement oil pump engineered to restore correct oil pressure and reliable lubrication for older I4 platforms. Pressure Rating: 72 PSI for consistent, factory-level oil pressure. Shim Count: Includes 2 precision shims for correct pump clearance and optimal performance. Configuration: Supplied without crank seal (w/o crank seal) to allow compatibility with OEM seal choices or vehicle-specific crank seal installation. Quality: Boundary engineered to meet or exceed OEM tolerances for durability and long service life. This oil pump assembly is ideal for engine rebuilds, performance restorations, and preventive maintenance. Reinstall with proper shimming and torque specs to ensure reliable oil flow and pressure across operating conditions. Keywords: Boundary oil pump, Ford I4 oil pump, Mazda BP oil pump, 72 PSI oil pump, 2 shims oil pump, BP engine oil pump replacement.