Sealed Power 6-4990A Engine Connecting Rod Bearing Set

Overview of Sealed Power Engine Connecting Rod Bearing Set 6-4990A

The Sealed Power Engine Connecting Rod Bearing Set 6-4990A is designed for reliable performance in select Buick, Chevrolet, Pontiac, and Saturn vehicles. Engineered to meet precise specifications, this bearing set supports smooth engine operation and durability.

• Housing Bore Diameter: 2.3746 to 2.3755 inches (60.3150 to 60.3380 mm)
• Oil Clearance Range: 0.0007 to 0.0027 inches (0.0180 to 0.0690 mm)
• Overall Length: 0.7620 to 0.7720 inches (19.3550 to 19.6100 mm)
• Standard Shaft Diameter: 2.2489 to 2.2495 inches (57.1220 to 57.1370 mm)
• Wall Thickness Maximum: 0.0622 inches (1.5800 mm)

Technical Details and Specifications

This engine connecting rod bearing set is manufactured to precise tolerances to ensure optimal fit and function within the engine assembly. The housing bore dimensions range narrowly between 2.3746 and 2.3755 inches, providing a consistent fit for the connecting rod journals. Oil clearance is tightly controlled between 0.0007 and 0.0027 inches, which is critical for maintaining proper lubrication and minimizing wear. The overall length and wall thickness specifications contribute to the bearing's structural integrity and compatibility with the engine's connecting rods.

Compatible Vehicles and Applications

The Sealed Power 6-4990A bearing set is compatible with a range of GM vehicles, including Buick Rendezvous and Terraza, Chevrolet Impala, Malibu, Monte Carlo, Montana, and Relay, Pontiac G6, and Saturn Aura, Vue, and Uplander. This makes it suitable for engine rebuilds or repairs requiring precise bearing replacement in these models.

• Reduces engine knocking and bearing wear
• Addresses excessive oil clearance issues
• Helps restore proper engine oil pressure
• Prevents premature bearing failure
• Supports smooth piston and rod movement

Installation Notes and Tips

Ensure the engine block and connecting rods are thoroughly cleaned before installation. Verify the housing bore and shaft dimensions match the bearing specifications to maintain proper oil clearance. Use appropriate assembly lubricant during installation to prevent initial wear. It is recommended to check bearing clearances with plastigage or a micrometer to confirm fitment before final assembly.

Quality Assurance and Warranty

Sealed Power engine components are manufactured to meet industry standards for durability and performance. The 6-4990A bearing set undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details are not provided, Sealed Power products typically come with manufacturer-backed quality assurance to support reliable engine operation.