Perfect Circle CB1453H Connecting Rod Bearing Set for Mazda 1.6L-1.8L

The Perfect Circle CB1453H is a high-performance connecting rod bearing set designed specifically for Mazda B4BP 1.6-1.8L L4 engines. Part of the renowned Clevite H-Series bearing line, this precision-engineered component delivers exceptional durability and performance for demanding applications.

Key Features:

• H-Series design with medium eccentricity and high crush for superior retention
• Hardened steel backing with thin overlay for maximum strength
• TM-77 TriMetal construction combining copper-lead alloy with white metal electroplating
• No flash plating for improved bearing seating and faster break-in
• Engineered for crankshafts with oversize fillets
• Optimized for medium to high RPM engine operation

This bearing set provides ideal conformability, embedability, and fatigue resistance—critical characteristics for performance engine builds and rebuilds. The TriMetal design offers excellent slipperiness and load-bearing capacity, making these bearings suitable for both street and performance applications. Sold as a complete connecting rod bearing set.

Applications: Compatible with Mazda Miata (1990-2005), Mazda 323, Mazda Protege, Ford Escort, Mercury Tracer, Kia Sephia/Spectra, and other vehicles equipped with Mazda B4 or BP series engines.