Dorman 594-303 Engine Harmonic Balancer

Dorman 594-303 Harmonic Balancer for Nissan V6 Applications

Dorman 594-303 is a direct replacement engine harmonic balancer built for Nissan and INFINITI V6 applications that need reliable vibration control. It uses a stress-resistant rubber bond to help absorb engine vibration, while the ductile steel construction adds tensile and impact strength for long-term durability.

Key Features

• Direct replacement harmonic balancer for OE-style fit and function
• Stress-resistant rubber bond helps absorb crankshaft vibration
• Ductile steel construction for added strength and durability
• Serpentine drive belt type application
• Degree markings included for timing reference
• Bolt and washer included
• Black finish
• Package contents: balancer, Woodruff key, instruction sheet

Detailed Description

This Dorman harmonic balancer is engineered for vehicles that rely on stable crankshaft damping to reduce vibration and protect rotating engine components. The 594-303 uses a bonded rubber isolator to manage torsional movement, while the steel body provides the structural strength needed in demanding engine environments. It is a practical replacement for service work on 2002-2008 Nissan Maxima, 2003-2008 Nissan Murano, 2004-2008 Nissan Quest, 2002-2006 Nissan Altima, and 2002-2004 INFINITI I35. This part cross-references PowerBond by Dayco PB1378N for the same application.

What This Part Helps Address

• Crankshaft vibration that can affect engine smoothness
• Worn or deteriorated harmonic balancer rubber bond
• Timing reference visibility issues when degree markings are needed
• Noise or imbalance concerns from a damaged balancer
• Replacement needs on Nissan Maxima, Murano, Quest, Altima, and INFINITI I35 V6 engines

Installation Notes and Tips

Verify pulley alignment, crankshaft keyway condition, and belt routing before installation. Use the included Woodruff key and follow the instruction sheet during assembly. Confirm the serpentine belt configuration and match the balancer to the vehicle’s year and engine application before service. Fits 2002-2008 Nissan Maxima, N/A. Fits 2003-2008 Nissan Murano, N/A. Fits 2004-2008 Nissan Quest, N/A. Fits 2002-2006 Nissan Altima, N/A. Fits 2002-2004 INFINITI I35, N/A.

Quality Assurance

Dorman manufactures replacement components with OE-style service fitment in mind, and this balancer is built with durable materials and application-specific details for the listed Nissan and INFINITI vehicles.