Dayco PB1677N Engine Harmonic Balancer

Overview of Dayco Premium OEM Replacement Balancer PB1677N

The Dayco Premium OEM Replacement Balancer PB1677N is engineered for reliable engine performance in select Ford, Lincoln, Mazda, and Mercury vehicles. Designed as an engine harmonic balancer, this component helps reduce crankshaft vibration and supports accessory drive systems in models like the Ford Explorer and Mazda CX-9.

• Compatible with Ford, Lincoln, Mazda, and Mercury vehicles including CX-9, Edge, Explorer, Flex, Fusion, MKS, MKT, MKX, MKZ, Sable, Taurus, and Taurus X
• Part number PB1677N for precise identification and fitment
• Constructed with a cast iron outer ring for durability
• Features two integrated serpentine pulleys with 6 and 4 grooves respectively
• Neutral counterweight balance design with no additional counterweights
• Includes timing marks for accurate engine timing alignment
• Three bolt holes and a crank bore diameter of 1.249 inches (31.71 mm)

About the Premium OEM Replacement Balancer Line

The Dayco Premium OEM Replacement Balancer line focuses on delivering components that meet original equipment specifications. This ensures compatibility and performance consistency for engine harmonic balancers like the PB1677N. The line emphasizes precision manufacturing and material quality, such as the use of cast iron for the outer ring, to maintain engine balance and accessory drive efficiency.

Technical Details and Specifications

The PB1677N harmonic balancer features a neutral counterweight balance, meaning it does not include additional counterweights, which is suitable for engines designed to operate without them. The balancer has an overall outside diameter of 1.890 inches (48.00 mm) and an overall width of 2.638 inches (67.00 mm). It includes two integrated serpentine pulleys: the first pulley has 6 grooves with a diameter of 6.280 inches (159.50 mm), and the second pulley has 4 grooves with a diameter of 5.876 inches (149.25 mm). The crank bore measures 1.249 inches (31.71 mm), and the balancer is designed with three bolt holes for secure mounting. Timing marks are included to assist with precise engine timing during installation.

Common Applications and Problem Solving

• Reduces crankshaft vibration to prevent engine damage
• Supports accessory belt drive systems in Ford Explorer and Mazda CX-9
• Replaces worn or damaged harmonic balancers in compatible Ford, Lincoln, Mazda, and Mercury models
• Helps maintain engine timing accuracy with integrated timing marks
• Addresses pulley wear or damage affecting serpentine belt operation

Installation Notes and Tips

Installation of the Dayco PB1677N harmonic balancer requires proper alignment of the crank bore and bolt holes. Use the included timing marks to ensure correct engine timing. Note that this part does not include installation hardware or instructions, so refer to the vehicle’s service manual for torque specifications and installation procedures. Verify compatibility with your specific vehicle model before installation.

Quality Assurance and Warranty

Dayco’s Premium OEM Replacement Balancer line is manufactured to meet OEM standards for fit and function. While specific warranty details for part number PB1677N are not provided here, Dayco products typically come with a limited warranty against defects in material and workmanship. Consult Dayco or your parts provider for exact warranty terms.