Dorman 594-403 Engine Harmonic Balancer

Direct Replacement Harmonic Balancer

Dorman 594-403 is a direct replacement engine harmonic balancer for select Toyota, Lexus, and Scion applications. It is built with a stress-resistant rubber bond to absorb engine vibration and ductile steel construction for added tensile and impact strength.

Compatible With 2009-2019 Toyota RAV4, 2012-2019 Toyota Camry, 2009-2017 Toyota Highlander, 2009-2016 Toyota Venza, 2011-2016 Scion tC, 2011-2013 Toyota Sienna, 2013-2019 Lexus ES300h, and select Toyota Avalon and 2019 Toyota Highlander applications. Part number 594-403 is also a fitment-focused replacement for drivers searching for a harmonic balancer for Toyota Camry or Lexus ES300h engine vibration control.

• Stress-resistant rubber bond helps absorb crankshaft vibration
• Ductile steel body adds tensile strength and impact resistance
• Direct replacement design for OE-style fit and function
• Black finish with degree markings for timing reference
• Serpentine drive belt type application
• Single mounting hole configuration

Application Details

This harmonic balancer is used to reduce engine vibration and support smoother crankshaft operation in compatible Toyota, Lexus, and Scion engines. It cross-references PowerBond by Dayco PB1719N for the same application.

Common Issues It Can Address

• Excessive engine vibration at idle or under load
• Cracked or deteriorated balancer rubber bond
• Wobble or runout at the crank pulley area
• Timing mark visibility concerns during service
• Noise from a worn harmonic balancer assembly

Installation Notes

Verify engine code and vehicle-specific fitment before installation. One listed Avalon application requires engine number verification: Vxxxxxx - Zxxxxxx and parts produced outside Japan. Confirm serpentine belt routing, pulley alignment, and degree markings during installation. Use the correct service procedure for crankshaft pulley removal and torque specifications.

Quality Assurance

Dorman manufactures this harmonic balancer as a direct replacement component with materials selected for durability and vibration control. The ductile steel construction and bonded rubber design support long-term service in the listed Toyota, Lexus, and Scion applications.