Dayco PB1785N Engine Harmonic Balancer

Dayco Premium OEM Replacement Balancer for Nissan

The Dayco PB1785N is a premium OEM replacement engine harmonic balancer for select Nissan Pickup and Nissan D21 applications. Built with a cast iron outer ring, neutral balance, and timing marks, it is specified for 1990-1994 Nissan D21 and 1995-1997 Nissan Pickup models.

Key Features

• Premium OEM Replacement Balancer from Dayco
• Part number PB1785N
• Engine harmonic balancer with neutral, no-counterweight balance
• Cast iron outer ring for durable construction
• Three integrated pulleys with V-belt pulley design
• Timing marks included for service alignment
• 6 bolt holes, 30.00 mm crank bore, and 46.00 mm nose outside diameter
• Overall dimensions: 158.00 mm outside diameter and 75.40 mm width

Detailed Description

Dayco PB1785N is an engine harmonic balancer engineered for Nissan engines that require a neutral-balance replacement with integrated V-belt pulley sections. The unit measures 158.00 mm in overall outside diameter, 75.40 mm in overall width, and uses a 30.00 mm crank bore with a 46.00 mm nose outside diameter. Its cast iron outer ring and timing marks support accurate installation and service work on the engine front end. This part number, PB1785N, is listed for 1990-1994 Nissan D21 and 1995-1997 Nissan Pickup applications.

Dayco’s Premium OEM Replacement Balancer line focuses on direct-fit replacement components for vehicles that need factory-style dimensions and function. For buyers searching for a Nissan D21 harmonic balancer or a Nissan Pickup engine harmonic balancer, PB1785N provides the specified pulley layout, bolt pattern, and timing-mark configuration needed for the listed applications.

What It Helps Address

• Crankshaft vibration control issues caused by a worn balancer
• Timing mark visibility problems during engine service
• Belt drive alignment concerns on V-belt accessory systems
• Noise or imbalance from a deteriorated harmonic balancer
• Front-end engine service replacement needs on Nissan Pickup and Nissan D21 models

Installation Notes and Tips

Verify crank bore, nose diameter, bolt-hole count, and pulley configuration before installation. This balancer does not include hardware, installation instructions, or a Woodruff key, so reuse or source the required components as needed. Confirm timing mark orientation during installation and follow the vehicle service procedure for proper torque and alignment. Fits 1990-1994 Nissan D21 and fits 1995-1997 Nissan Pickup, N/A.

Quality Assurance

Dayco Premium OEM Replacement Balancer parts are built to match the listed application specifications for fit and function. Part number PB1785N is cataloged for the confirmed Nissan D21 and Nissan Pickup fitments shown above.