The Clevite CB-1869P-.25MM(8) is a high-performance P-Series connecting rod bearing set designed for demanding racing and performance applications. This set includes bearings for one connecting rod (sold as pairs) with 0.25mm undersize specifications, engineered to meet or exceed OEM standards while providing superior protection under extreme conditions.
P-Series Performance Features:
- Maximum eccentricity design to prevent rod bore close-in at extremely high RPMs
- Hardened steel back construction for exceptional strength and fretting resistance
- High crush design ensures maximum bearing retention in the rod bore
- Reduced overlay thickness prevents overlay fatigue and "hen tracking"
- TriMetal construction with lead-tin-copper overlay for optimal durability
- Engineered for severe duty racing applications with sustained high RPM operation
When to Use P-Series Bearings:
P-Series rod bearings are the ideal choice when extreme RPM conditions cause severe rod bore deformation and close-in. This is typically indicated by nearly full parting line to parting line shaft contact with standard bearings. The increased eccentricity of P-Series bearings maintains proper oil clearance and prevents bearing distress under these demanding conditions.
Technical Specifications:
- Undersize: 0.25mm (-.25MM)
- Configuration: Paired set for one connecting rod
- Back material: Hardened steel for racing applications
- Overlay: Reduced thickness lead-tin-copper for fatigue resistance
- Crush: High retention design
Clevite's legendary TriMetal bearing construction combines a steel backing, copper-lead intermediate layer, and precision overlay to deliver the strength and conformability needed for high-performance engines. These bearings protect vital components from friction-related damage while maintaining consistent oil clearances under extreme loads.
Important Ordering Note: Clevite rod bearings are sold as paired sets (two bearing halves for one connecting rod). For a complete engine rebuild, order one set per cylinder. For example, a 6-cylinder engine requires a quantity of 6 sets.