Dorman 594-331 Engine Harmonic Balancer

Dorman 594-331 Harmonic Balancer

Dorman 594-331 is a direct replacement engine harmonic balancer for select Volkswagen applications. It uses a stress-resistant rubber bond to help absorb engine vibration, while ductile steel construction adds tensile and impact strength for durability.

Key Features

• Direct replacement harmonic balancer for OE-style fit and function
• Stress-resistant rubber bond helps isolate engine vibration
• Ductile steel construction for added strength and durability
• 6-groove pulley design for serpentine belt systems
• Degree markings included for timing reference
• Tan finish with a 160.5 mm outside diameter and 39 mm depth

Detailed Description

This Dorman harmonic balancer, part number 594-331, is built for Volkswagen Jetta and Volkswagen Passat models that use a serpentine drive belt setup. It is engineered as a direct replacement for the original balancer and is intended to help control crankshaft vibration while maintaining reliable belt drive operation. The 30 mm inside diameter and single mounting hole configuration support OE-style installation on the listed applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Compatible With 1997-1998 Volkswagen Jetta and 1996-1997 Volkswagen Passat, this harmonic balancer is a practical choice when servicing vibration-related engine concerns on these vehicles. The Dorman 594-331 is also a useful reference point when searching for a Volkswagen Jetta harmonic balancer or Volkswagen Passat crankshaft balancer by part number.

Common Issues This Part May Address

• Engine vibration transmitted through the crankshaft pulley area
• Cracked or deteriorated rubber isolator material in the balancer
• Wobble or imbalance at the front of the engine
• Wear on serpentine belt drive components caused by a failing balancer
• Timing reference visibility issues when degree markings are needed

Installation Notes and Tips

Verify pulley groove count, inside diameter, and mounting hole dimensions before installation. Confirm the vehicle uses a serpentine belt system and compare the original balancer to Dorman 594-331 for diameter, depth, and degree-marking layout. Inspect the crankshaft snout, keyway area, and belt drive components for wear before fitting the new balancer. Professional installation is recommended to ensure proper alignment and torque procedures.

Quality Assurance

Dorman manufactures this harmonic balancer as a direct replacement component using ductile steel construction and a vibration-absorbing rubber bond. The design focuses on restoring OE-style function for the listed Volkswagen applications, including 1997-1998 Volkswagen Jetta and 1996-1997 Volkswagen Passat.