Boundary BP I4 Oil Pump Shim Kit, 7/14/21/28/35 PSI with Pin

Boundary Shim Kit for 1989–2005 Ford/Mazda I4 BP Brand: Boundary Precision shim kit for all BP-series I4 oil pumps used on 1989–2005 Ford and Mazda applications. For oil pump pressure adjustment. Includes: Shims for 7, 14, 21, 28, and 35 PSI adjustments plus retaining pin Compatibility: Fits BP-series I4 oil pumps across Ford and Mazda models from 1989–2005 Benefits: 7, 14, 21, 28, and 35 PSI adjustment options Quality: Durable, precision-cut shims for repeatable installation Ideal for rebuilds, performance upgrades, or routine maintenance. Simple to use—adjust to manufacturer spec for optimal performance and longevity. Why choose Boundary: Trusted OEM-fit replacement parts designed for reliable performance and long service life.