Sealed Power 1555CPA Engine Connecting Rod Bearing

Overview of Sealed Power 1555CPA Engine Connecting Rod Bearing

The Sealed Power 1555CPA engine connecting rod bearing is engineered for reliable performance in select Buick, Oldsmobile, and Pontiac vehicles. Designed to meet precise specifications, this bearing supports smooth engine operation and durability.

• Housing Bore Max: 2.3750 inches (60.3250 mm)
• Housing Bore Min: 2.3745 inches (60.3120 mm)
• Oil Clearance Range: 0.0009 to 0.0034 inches (0.0230 to 0.0860 mm)
• Overall Length Max: 0.8860 inches (22.5000 mm)
• Standard Shaft Diameter: 2.2488 to 2.2498 inches (57.1200 to 57.1450 mm)
• Wall Thickness Max: 0.0619 inches (1.5720 mm)

Technical Specifications and Compatibility

This engine connecting rod bearing is manufactured to exacting tolerances, ensuring proper fit and function within the engine assembly. The housing bore dimensions range narrowly between 2.3745 and 2.3750 inches, providing a precise fit for the connecting rod journal. Oil clearance specifications from 0.0009 to 0.0034 inches allow for optimal lubrication, reducing friction and wear during engine operation. The overall length and wall thickness are designed to maintain structural integrity under engine stress.

The 1555CPA bearing is compatible with a range of Buick, Oldsmobile, and Pontiac models, including the Buick LeSabre and Riviera, Oldsmobile 98 and Delta 88, and Pontiac Firebird and GTO. This ensures that the bearing meets the specific requirements of these engines for reliable performance.

Applications and Problem Resolution

• Restores proper bearing clearance to prevent engine knocking
• Reduces wear on connecting rod journals and crankshaft
• Helps eliminate oil pressure loss related to bearing wear
• Addresses vibration and noise caused by worn bearings
• Supports engine longevity by maintaining correct oil clearance

Installation Notes and Tips

When installing the Sealed Power 1555CPA connecting rod bearing, ensure the housing bore and shaft dimensions are within specified tolerances. Proper cleaning of the bearing surface and lubrication with assembly lube is recommended to prevent initial wear. Verify oil clearance using plastigage or a micrometer to confirm compatibility with the engine’s specifications. Follow manufacturer torque specifications for connecting rod bolts to avoid distortion.

Quality Assurance and Warranty

Sealed Power bearings are manufactured under strict quality control standards to meet OEM specifications. The 1555CPA bearing undergoes rigorous dimensional and material testing to ensure durability and performance. While specific warranty details may vary, Sealed Power products typically include coverage against manufacturing defects. Consult product documentation for exact warranty terms.