Dayco PB1641N Engine Harmonic Balancer

Dayco Premium OEM Replacement Balancer

The Dayco PB1641N engine harmonic balancer is a premium OEM replacement for select Ram and Dodge Ram heavy-duty trucks. It is built with a cast iron outer ring, neutral balance, and integrated serpentine pulley details to match the original engine setup.

Compatible with 2007-2010 Dodge Ram 2500, 2007-2010 Dodge Ram 3500, 2011-2018 Ram 2500, and 2011-2018 Ram 3500, this harmonic balancer is a direct-fit option for diesel truck engine service. The Dayco PB1641N also includes timing marks and a crank trigger/exciter plate for applications that rely on accurate engine reference signals.

Key Features

• Premium OEM replacement balancer from Dayco
• Neutral balance design with no counterweight
• Cast iron outer ring for durable engine operation
• Integrated serpentine pulley with 8 grooves
• Timing marks included for service alignment
• Crank trigger/exciter plate included
• Overall outside diameter: 9.331 in. (237.00 mm)
• Overall width: 2.402 in. (61.00 mm)
• Crank bore: 0.751 in. (19.07 mm)

Detailed Description

Dayco PB1641N is a harmonic balancer engineered for select Ram 2500 and Ram 3500 trucks, as well as 2007-2010 Dodge Ram 2500 and Dodge Ram 3500 models. The premium OEM replacement balancer line focuses on matching original equipment dimensions and functional features, including a single integrated pulley, 4 bolt holes, and timing marks for proper engine service. This part number, PB1641N, is a practical choice when replacing a worn or damaged balancer on compatible Ram and Dodge Ram diesel applications.

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

What It Helps Address

• Engine vibration caused by a worn harmonic balancer
• Timing reference issues when timing marks are damaged or unreadable
• Serpentine belt drive concerns related to a failing integrated pulley
• Crankshaft signal problems on applications using a trigger/exciter plate
• Noise or imbalance from deterioration of the balancer assembly

Installation Notes and Tips

Verify crank bore, pulley groove count, and overall diameter against the original part before installation. The PB1641N does not include hardware, installation instructions, or a woodruff key, so reuse or source the correct service components as needed. Confirm timing mark orientation and crank trigger alignment during installation to maintain proper engine reference.

Quality Assurance

Dayco’s Premium OEM Replacement Balancer line is built to match OE-style fitment and functional requirements for service replacement. The PB1641N is specified for select Ram and Dodge Ram applications and is designed around the listed dimensions and features for accurate replacement service.