Dayco PB1681N Engine Harmonic Balancer

Overview of Dayco Premium OEM Replacement Balancer PB1681N

The Dayco Premium OEM Replacement Balancer PB1681N is engineered for reliable performance in Chrysler and Dodge vehicles. Designed specifically for models like the Aspen, Durango, Ram 1500, Ram 2500, and Ram 3500, this engine harmonic balancer ensures proper crankshaft operation and accessory drive alignment.

• Compatible with Chrysler Aspen, Dodge Durango, Ram 1500, 2500, and 3500
• Part number PB1681N for precise identification
• Constructed with a cast iron outer ring for durability
• Features a neutral counterweight balance with no counterweight
• Includes one integrated serpentine pulley with 7 grooves
• Crank bore diameter of 1.475 inches (37.45 mm)
• Overall outside diameter of 7.225 inches (183.50 mm)
• Overall width of 4.634 inches (117.70 mm)
• Does not include hardware or installation instructions

About the Premium OEM Replacement Balancer Product Line

The Dayco Premium OEM Replacement Balancer line is designed to meet original equipment specifications, providing a direct replacement for worn or damaged harmonic balancers. This product line focuses on maintaining engine balance and accessory drive efficiency without requiring additional modifications. The PB1681N model exemplifies this approach by matching OEM dimensions and materials, such as the cast iron outer ring and integrated serpentine pulley, ensuring compatibility and durability for Chrysler and Dodge engines.

Detailed Product Description

The PB1681N engine harmonic balancer is a critical component that reduces crankshaft vibration and supports accessory belt operation. It features a neutral counterweight balance, meaning it does not add extra counterweights, which is suitable for engines designed to operate without additional balancing. The balancer includes a single serpentine pulley with seven grooves, facilitating proper belt alignment and tension. Its crank bore measures 1.475 inches (37.45 mm), fitting securely on the crankshaft nose with a diameter of 1.982 inches (50.33 mm). The overall dimensions—7.225 inches in diameter and 4.634 inches in width—ensure a precise fit for the specified vehicle models.

Common Applications and Issues Addressed

• Replacement for worn or damaged harmonic balancers in Chrysler Aspen and Dodge Durango
• Restores proper crankshaft vibration dampening in Ram 1500, 2500, and 3500 engines
• Prevents accessory belt misalignment and premature wear
• Eliminates engine noise caused by harmonic balancer failure
• Supports engine longevity by maintaining balanced crankshaft rotation

Installation Notes and Tips

• Installation hardware and instructions are not included; refer to vehicle service manual
• Ensure crankshaft and bore surfaces are clean before installation
• Use proper torque specifications for bolt tightening to avoid damage
• Verify pulley alignment after installation to prevent belt wear
• Professional installation is recommended for accurate fitment and safety

Quality Assurance and Warranty

Dayco's Premium OEM Replacement Balancer PB1681N is manufactured to meet OEM standards, using durable materials like cast iron for the outer ring to ensure long service life. While specific warranty details are not provided, Dayco products typically adhere to industry quality controls and are backed by the brand's commitment to reliability and performance.