90-05 Mazda Miata Connecting Rod Bearing Set - Clevite CB1453H

Maximize your Miata’s bottom-end durability with the Clevite CB1453H Connecting Rod Bearing Set, designed for Mazda B4BP 1.6L and 1.8L L4 engines. Part of Clevite’s race-proven H-Series bearings, these rod bearings are engineered to handle medium to high RPM operation—ideal for performance builds, turbocharged applications, and track-day use.

H-Series bearings feature:

• Medium eccentricity for precise oil wedge formation.

• High crush for superior retention and alignment under load.

• Hardened steel back with a thin overlay for added strength.

• No flash plating, ensuring better seating and consistent fitment.

These bearings are especially recommended for crankshafts with oversize fillets and engines regularly subjected to higher RPM ranges. By reducing distortion and improving seating accuracy, they provide the confidence needed for sustained performance in both street and racing environments.

Built on Clevite’s reputation for durability and precision, the CB1453H bearing set gives Miata owners a proven upgrade that supports reliability and horsepower. Whether you’re rebuilding a tired NA or NB motor, prepping a Spec Miata race car, or chasing boost with a turbo build, these rod bearings provide the longevity, oil control, and structural integrity your engine deserves.

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