Dayco PB1721N Engine Harmonic Balancer

Overview of Dayco Premium OEM Replacement Balancer PB1721N

The Dayco Premium OEM Replacement Balancer PB1721N is engineered for precise engine harmonic balancing in select Audi and Volkswagen models. Designed to maintain engine smoothness and reduce vibration, this balancer supports optimal performance in vehicles such as the Audi A4, A5, and Volkswagen Golf.

• Compatible with multiple Audi and Volkswagen models including A3, A4, A5, Q5, and Golf variants
• Steel outer ring construction for durability and longevity
• Neutral counterweight balance with no additional counterweights
• Includes one integrated serpentine pulley with six grooves
• Features timing marks for accurate installation
• Four bolt hole configuration for secure mounting

Detailed Product Features and Specifications

The Dayco PB1721N engine harmonic balancer features a 0.648 inch (16.45 mm) crank bore and a nose outside diameter of 1.772 inches (45.00 mm). Its overall outside diameter measures 5.622 inches (142.78 mm) with a width of 1.418 inches (36.00 mm). The balancer includes a single serpentine pulley with six grooves and an outside diameter of 5.441 inches (138.20 mm). The steel outer ring ensures structural integrity under engine stress, while the neutral counterweight design maintains engine balance without additional weight compensation. Timing marks are incorporated to assist with precise alignment during installation.

About the Premium OEM Replacement Balancer Line

Dayco's Premium OEM Replacement Balancer line is designed to meet or exceed original equipment specifications, providing reliable harmonic balancing for engine components. This product line focuses on delivering parts that match OEM fit, form, and function, ensuring compatibility and performance consistency for vehicles like Audi and Volkswagen models. The PB1721N is part of this line, offering a direct replacement solution without the need for modifications.

Applications and Common Issues Addressed

• Reduces engine vibration and noise caused by harmonic imbalance
• Prevents premature wear on crankshaft and accessory components
• Helps maintain proper timing and accessory belt alignment
• Addresses issues related to pulley wear or damage
• Restores engine smoothness in Audi A4, A5, and Volkswagen Golf models

Installation Notes and Tips

Installation of the Dayco PB1721N requires proper alignment using the included timing marks. Note that hardware and installation instructions are not included, so refer to the vehicle’s service manual for torque specifications and installation procedures. Ensure the crank bore and bolt hole pattern match the engine specifications before installation. Use appropriate tools to avoid damage to the balancer or crankshaft.

Quality Assurance and Warranty

Dayco’s Premium OEM Replacement Balancer PB1721N is manufactured to meet stringent quality standards, ensuring durability and reliable performance. While specific warranty details are not provided, Dayco products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Verify warranty terms with the product documentation or authorized sources.