Dayco PB1646N Engine Harmonic Balancer

Dayco PB1646N Harmonic Balancer Overview

The Dayco PB1646N is a premium OEM replacement harmonic balancer for select Ford Super Duty diesel applications. Built with a hub-weighted counterweight balance and a cast iron outer ring, it is engineered to support crankshaft vibration control and accessory drive stability in demanding engine service.

Compatible with 2008-2010 Ford F-250 Super Duty and 2008-2010 Ford F-350 Super Duty, this balancer is a direct-fit option for owners searching for a Ford F-250 Super Duty harmonic balancer or Ford F-350 Super Duty engine balancer replacement.

Key Features

• Part number PB1646N from Dayco Premium OEM Replacement Balancer
• Hub weighted counterweight balance for OE-style engine damping
• Cast iron outer ring for durable rotating assembly support
• Two integrated serpentine pulleys
• Pulley 1: 6 grooves, 198.00 mm outside diameter
• Pulley 2: 8 grooves, 198.00 mm outside diameter
• Overall outside diameter: 215.00 mm (8.465 in.)
• Overall width: 113.30 mm (4.461 in.)
• 4 bolt hole quantity
• No timing marks, crank trigger/exciter plate, woodruff key, or included hardware

Product Details

Dayco PB1646N is designed as a premium OEM replacement balancer for the engine front end, where harmonic control and belt drive alignment are critical. The dual serpentine pulley layout supports accessory drive routing while the hub-weighted design and cast iron ring help maintain rotational balance under load. For buyers comparing a Ford F-250 Super Duty balancer or Ford F-350 Super Duty harmonic balancer, PB1646N provides the core dimensions and pulley configuration needed for the listed applications.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Crankshaft vibration and torsional oscillation
• Belt drive wobble or pulley alignment concerns
• Noise from a worn or failing harmonic balancer
• Accessory drive instability on the front of the engine
• Replacement needs after balancer rubber or ring wear

Installation Notes

Verify pulley groove count, overall diameter, width, and bolt pattern before installation. This balancer does not include hardware or installation instructions, and it does not use a crank trigger/exciter plate, timing marks, or a woodruff key. Confirm engine-specific fitment on 2008-2010 Ford F-250 Super Duty and 2008-2010 Ford F-350 Super Duty before assembly.

Quality Assurance

Dayco’s Premium OEM Replacement Balancer line is built for OE-style fit and function in engine service applications. PB1646N is specified with measured dimensions and pulley details to support accurate replacement selection for the listed Ford Super Duty models.