Dayco PB1648DP Engine Harmonic Balancer

Dayco Diesel Performance Race Balancer PB1648DP

The Dayco Diesel Performance Race Balancer PB1648DP is an engine harmonic balancer built for diesel performance applications that demand stable crankshaft control. It features a hub-weighted counterweight balance, a steel outer ring, and integrated serpentine pulley construction for 2001-2005 Chevrolet Silverado 2500 HD, Silverado 3500, GMC Sierra 2500 HD, and Sierra 3500 diesel performance race balancer applications.

Key Features

• Brand: Dayco Diesel Performance Race Balancer
• Part number: PB1648DP
• Hub weighted counterweight balance
• Steel outer ring construction
• Integrated 6-groove serpentine pulley
• Timing marks included
• Crank bore: 1.930 in. (49.01 mm)
• Overall outside diameter: 7.815 in. (198.50 mm)
• Overall width: 2.678 in. (68.00 mm)
• Ring width: 2.599 in. (65.99 mm)

Detailed Description

Dayco PB1648DP is a diesel performance race balancer engineered as an engine harmonic balancer for applications that need controlled crankshaft damping and accessory drive alignment. The hub-weighted design, steel outer ring, and single integrated serpentine pulley support a direct-fit style installation on 2001-2005 Chevrolet Silverado 2500 HD, Silverado 3500, GMC Sierra 2500 HD, and Sierra 3500 diesel platforms. Timing marks are included for setup and service reference, while the 1.930-inch crank bore and 6-groove pulley layout provide the dimensional details needed for application matching.

Dayco’s Diesel Performance Race Balancer line focuses on diesel performance use cases where crankshaft stability and pulley geometry matter. The PB1648DP is identified by part number PB1648DP and is built with a steel outer ring for durability in demanding engine environments.

What It Is Used For

• Replacing a worn or damaged engine harmonic balancer
• Restoring crankshaft damping on diesel performance builds
• Correcting accessory drive alignment issues tied to balancer wear
• Addressing timing mark visibility problems during service
• Supporting fitment on 2001-2005 Chevrolet Silverado 2500 HD and Silverado 3500 diesel applications, as well as GMC Sierra 2500 HD and Sierra 3500 diesel applications

Installation Notes and Tips

Verify crank bore, pulley groove count, overall diameter, and width before installation. This balancer does not include hardware, installation instructions, a crank trigger/exciter plate, or a woodruff key. Confirm timing mark orientation and accessory belt alignment during assembly. Fits 2001-2005 Chevrolet Silverado 2500 HD, N/A. Fits 2001-2005 Chevrolet Silverado 3500, N/A. Fits 2001-2005 GMC Sierra 2500 HD, N/A. Fits 2001-2005 GMC Sierra 3500, N/A.

Quality Assurance

Dayco manufactures engine components for diesel performance and service applications, and the PB1648DP is built to published dimensional specifications for application matching. This part cross-references no listed interchange numbers in the provided data.