Dayco PB1309N Engine Harmonic Balancer

Overview of Dayco Premium OEM Replacement Balancer PB1309N

The Dayco Premium OEM Replacement Balancer PB1309N is engineered for Nissan vehicles including the D21, Pathfinder, and Pickup models. Designed to maintain engine balance and reduce vibration, this engine harmonic balancer is a critical component for optimal engine performance.

• Compatible with Nissan D21, Pathfinder, and Pickup
• Neutral counterweight balance with no counterweight
• Crank bore diameter of 0.985 inches (25.01 mm)
• Three integrated V-belt pulleys with varying diameters
• Cast iron outer ring for durability
• Includes timing marks for precise alignment
• Overall outside diameter of 6.319 inches (160.50 mm)
• Overall width of 2.563 inches (65.10 mm)

Detailed Product Description

The Dayco PB1309N engine harmonic balancer features a neutral counterweight design, meaning it does not include additional counterweights, which helps maintain engine balance without altering crankshaft dynamics. The balancer has a crank bore diameter of 0.985 inches (25.01 mm), ensuring a precise fit on the crankshaft of compatible Nissan models.

This balancer integrates three V-belt pulleys: the first pulley measures 6.3 inches (160 mm) in diameter with one groove, the second pulley is 5.119 inches (130 mm) with one groove, and the third pulley is also designed for V-belt use. The outer ring is made of cast iron, providing strength and resistance to wear. The overall outside diameter is 6.319 inches (160.50 mm), with a width of 2.563 inches (65.10 mm), making it suitable for the specified Nissan engines.

The balancer also includes timing marks to assist with accurate installation and engine timing adjustments. Note that this part does not include a crank trigger or exciter plate, nor does it come with installation hardware or Woodruff key.

About the Premium OEM Replacement Balancer Line

The Dayco Premium OEM Replacement Balancer line is designed to meet or exceed original equipment specifications, providing reliable performance and durability. This product line focuses on delivering precise fitment and balance characteristics to ensure smooth engine operation and longevity, making it a suitable replacement for Nissan D21, Pathfinder, and Pickup models requiring harmonic balancer maintenance.

Common Applications and Issues Addressed

• Reduces engine vibration and crankshaft stress
• Prevents premature wear of belts and pulleys
• Maintains proper timing alignment with included timing marks
• Eliminates noise caused by worn or damaged balancers
• Supports engine longevity by stabilizing rotating assembly

Installation Notes and Tips

• Ensure crank bore diameter matches 0.985 inches (25.01 mm) for proper fit
• Use appropriate tools to align timing marks during installation
• Verify pulley groove compatibility with existing V-belts
• Check for absence of counterweights to confirm neutral balance design
• Installation hardware and Woodruff key are not included and must be sourced separately

Quality Assurance and Warranty

Dayco's Premium OEM Replacement Balancer PB1309N is manufactured to meet stringent quality standards, ensuring durability and reliable performance in Nissan D21, Pathfinder, and Pickup engines. While specific warranty details are not provided, Dayco products typically adhere to industry standards for replacement engine components.