Dayco PB1309N Engine Harmonic Balancer

Dayco PB1309N Harmonic Balancer

The Dayco PB1309N is a premium OEM replacement harmonic balancer for select Nissan applications. It is built with a cast iron outer ring, neutral balance, and timing marks for accurate engine service on Pathfinder, Pickup, and D21 models.

Dayco’s Premium OEM Replacement Balancer line focuses on direct-fit engine components that match original-style dimensions and function. This balancer is specified with three integrated V-belt pulley grooves, making it a practical replacement for engines that rely on accessory drive alignment and crankshaft vibration control.

Key Features

• Part number: PB1309N
• Engine harmonic balancer for Nissan Pathfinder, Nissan Pickup, and Nissan D21 applications
• Neutral balance design with no counterweight
• Cast iron outer ring for durable engine service
• Three integrated pulleys with V-belt profiles
• Timing marks included for service alignment
• Crank bore: 25.01 mm (0.985 in.)
• Overall outside diameter: 160.50 mm (6.319 in.)
• Overall width: 65.10 mm (2.563 in.)

Detailed Description

This Dayco harmonic balancer is engineered for 1987-1995 Nissan Pathfinder, 1995 Nissan Pickup built to 8/95, and 1987-1994 Nissan D21 applications. It is designed around the original-style crankshaft interface and pulley layout, with a 43.10 mm nose outside diameter and a 55.88 mm ring width to support proper fitment in the engine bay. The PB1309N also includes timing marks, which helps during ignition and engine timing service.

This part cross-references Dorman 594-216 for the same application.

What It Helps Address

• Crankshaft vibration control concerns caused by a worn balancer
• Accessory drive alignment issues on V-belt systems
• Timing mark visibility problems during engine service
• Noise or imbalance from a deteriorated harmonic balancer
• Replacement needs for aging Nissan Pathfinder, Pickup, or D21 engine components

Installation Notes and Tips

Verify crank bore, nose diameter, pulley layout, and timing mark orientation before installation. This balancer does not include hardware, installation instructions, a crank trigger/exciter plate, or a woodruff key. Confirm engine build date on 1995 Nissan Pickup models, since fitment applies to vehicles manufactured to 8/95.

Quality Assurance

Dayco’s Premium OEM Replacement Balancer line is built as an OE-style service part for direct replacement use in the listed Nissan applications. Confirm fitment against the vehicle’s year, model, and build date before ordering.