Dayco PB1682N Engine Harmonic Balancer

Dayco PB1682N Harmonic Balancer for Nissan and INFINITI

Dayco PB1682N is a premium OEM replacement harmonic balancer built for select Nissan and INFINITI V6 applications. It is a neutral-balance engine balancer with a cast iron outer ring, integrated serpentine pulley, and timing marks for accurate service work.

Premium OEM Replacement Balancer Line

Dayco’s Premium OEM Replacement Balancer line focuses on direct-fit engine vibration control components for factory-style service replacement. PB1682N follows that approach with OE-style dimensions and a single integrated pulley for serpentine belt drive systems.

Key Features

• Neutral balance design with no counterweight
• Cast iron outer ring for durable engine service
• One integrated pulley with 7 grooves for serpentine belt routing
• Timing marks included for alignment and service reference
• Crank bore: 1.260 in. (31.99 mm)
• Nose outside diameter: 1.890 in. (48.00 mm)
• Overall outside diameter: 5.945 in. (151.00 mm)
• Overall width: 2.296 in. (58.30 mm)

Detailed Description

Dayco PB1682N harmonic balancer is engineered for engine vibration damping in select Nissan Pathfinder, Murano, Maxima, Altima, Quest, and INFINITI QX60 and JX35 applications. This part number, PB1682N, uses a neutral counterweight balance and a cast iron outer ring to match the needs of factory-style crankshaft damping and accessory drive operation. The integrated 7-groove serpentine pulley supports belt-driven accessories while the timing marks provide a clear reference during engine service.

This part cross-references Dorman 594-433 for the same application.

Vehicle Fitment

• Fits 2022-2025 Nissan Pathfinder, N/A
• Fits 2013-2020 Nissan Pathfinder, N/A
• Fits 2022-2024 INFINITI QX60, N/A
• Fits 2014-2020 INFINITI QX60, N/A
• Fits 2009-2024 Nissan Murano, N/A
• Fits 2016-2023 Nissan Maxima, N/A
• Fits 2009-2014 Nissan Maxima, N/A
• Fits 2007-2018 Nissan Altima, N/A
• Fits 2011-2017 Nissan Quest, N/A
• Fits 2013 INFINITI JX35, N/A
• Fits 2008 Nissan Maxima, N/A

Common Service Issues Addressed

• Crankshaft vibration from a worn or damaged harmonic balancer
• Serpentine belt drive noise caused by pulley wear or runout
• Timing mark visibility issues during engine service
• Accessory drive instability from a deteriorated balancer assembly
• Fitment replacement needs for OE-style engine repair on Nissan Murano, Pathfinder, and Maxima models

Installation Notes and Tips

Verify crank bore, nose diameter, pulley groove count, and overall dimensions before installation. PB1682N does not include hardware, installation instructions, a crank trigger/exciter plate, or a woodruff key. Use the timing marks during setup and confirm belt alignment after installation on Nissan Pathfinder, Murano, Maxima, Altima, Quest, and INFINITI QX60 applications.

Quality Assurance

Dayco Premium OEM Replacement Balancer parts are built for direct replacement service using application-specific dimensions and OE-style construction. PB1682N is intended for confirmed fitment on the listed Nissan and INFINITI vehicles.