Dayco PB1056N Engine Harmonic Balancer

Overview of Dayco PB1056N Engine Harmonic Balancer

The Dayco Premium OEM Replacement Balancer PB1056N is engineered for reliable performance in select Buick, Oldsmobile, and Pontiac vehicles. Designed to meet OEM specifications, this engine harmonic balancer helps maintain engine smoothness and reduce vibration.

• Compatible with Buick, Oldsmobile, and Pontiac models including Bonneville, Catalina, Firebird, Grand Prix, and more
• Neutral counterweight balance with no additional counterweights
• Cast iron outer ring for durability and wear resistance
• Includes timing marks for precise engine timing adjustments
• Four bolt holes and a crank bore diameter of 1.375 inches (34.90 mm)
• Overall outside diameter of 6.79 inches (172.45 mm) and width of 3.154 inches (80.10 mm)
• No integrated pulleys or crank trigger/exciter plate included

Detailed Product Description

The Dayco PB1056N engine harmonic balancer is a critical component designed to reduce torsional vibration in the crankshaft of compatible engines. Featuring a cast iron outer ring, this balancer offers durability and resistance to wear over time. The neutral counterweight balance ensures that the balancer does not add any additional imbalance to the crankshaft, maintaining engine stability. With four bolt holes and a crank bore size of 1.375 inches, it fits securely on the crankshaft. The inclusion of timing marks allows for accurate engine timing during installation or maintenance.

This balancer does not include integrated pulleys or a crank trigger/exciter plate, so it is intended for applications where these components are not required. The overall dimensions of 6.79 inches in diameter and 3.154 inches in width make it suitable for a range of Buick, Oldsmobile, and Pontiac models such as the Firebird, Grand Am, LeSabre, and GTO.

About the Premium OEM Replacement Balancer Line

The Dayco Premium OEM Replacement Balancer product line is designed to provide direct-fit replacements that meet original equipment manufacturer standards. This line focuses on delivering components that maintain engine balance and performance without modification, ensuring compatibility and reliability for specific vehicle applications. The PB1056N is part of this line, offering a balance solution tailored for select GM vehicles.

Common Applications and Issues Addressed

• Reduces crankshaft vibration that can cause engine noise and wear
• Helps prevent premature bearing and seal failure
• Maintains proper engine timing with clear timing marks
• Supports smooth engine operation in Buick, Oldsmobile, and Pontiac models
• Replaces worn or damaged harmonic balancers to restore engine balance

Installation Notes and Tips

• Ensure the crank bore and bolt hole pattern match the engine specifications before installation
• Use proper torque specifications for the four mounting bolts to secure the balancer
• Verify timing marks alignment during installation for accurate engine timing
• Inspect the crankshaft and keyway for wear or damage prior to installation
• Note that installation hardware and Woodruff key are not included and must be sourced separately

Quality Assurance and Warranty

Dayco's Premium OEM Replacement Balancer line is manufactured to meet or exceed OEM standards for fit and function. While specific warranty details for part number PB1056N are not provided here, Dayco typically offers limited warranties covering defects in materials and workmanship. Users should consult product documentation or contact Dayco directly for warranty information related to this engine harmonic balancer.