

Mazda BP Billet Backplate
From $199.00
- Lifetime Warranty
- Machined in the USA
- 2 US Patents
A billet steel backplate for the Mazda 1.8L BP oil pump (Miata 1991.5-2000, large-nose-crank pumps), developed with CFD simulation and precision 3D milling. Cut from billet steel roughly five times more rigid than aluminum to cut leak-by, aeration, and cavitation while raising high-RPM flow. Machined in Royse City, TX.
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Our Billet back plates use advanced CFD simulation and exacting 3D precision milling to create a blend of engineering and manufacturing that produces less leak by, less aeration, less cavitation, and higher RPM flow.
- The plate is cut from billet steel, five times as rigid as aluminum, reducing blow-by and air ingestion
- Increased volume and reduced foam increase engine bearing life
- Utilizes surface grinding to create the ultimate pump seal
Part Number BP-BBP FITS:
-
MIATA 1991.5-2000 (Not compatible with VVT housings)
- All Large Nose Crank Pumps
| Weight | 0.5 lbs |
|---|---|
| Dimensions | 8 × 6 × 1 in |
| BP MIATA | BP-BBP, BP-BBP-S |
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