Boundary 91.5-05 Ford/Mazda BP (All Types) I4 Billet Back Plate

Machined from a solid block of 6061-T6 aluminum, this billet back plate from Boundary is built to last for your Ford or Mazda BP engine. This plate is a key component in the oil pump assembly, and a well-made replacement can help ensure consistent oil pressure and flow. It's designed to fit BP engines across a range of years and applications, making it a solid option when you're rebuilding or refreshing your engine's oiling system.

The choice of 6061-T6 aluminum isn't just about looks; it offers a good balance of strength and light weight, and it resists corrosion well. This material also allows for precise machining, ensuring that the plate mates up correctly with the oil pump and the engine block. When you're working on the internals of your engine, using parts that fit right and are made from durable materials makes a big difference in the long run.