Dorman 594-003 Engine Harmonic Balancer

Overview of Dorman Engine Harmonic Balancer 594-003

The Dorman 594-003 engine harmonic balancer is designed for select Buick, Oldsmobile, and Pontiac models, including the 98, Bonneville, Century, Cutlass Ciera, Cutlass Cruiser, Delta 88, and LeSabre. This component helps reduce engine vibration and maintain smooth operation.

• Inside diameter: 34.94 mm
• Outside diameter: 182 mm
• Six pulley grooves for serpentine drive belts
• Single mounting hole design
• Includes bolt and washer; center bolt not included
• Depth of 92.5 mm
• Black finish with degree markings for precise installation
• Package includes balancer, bolt, woodruff key, and instruction sheet

Detailed Product Description

The Dorman 594-003 engine harmonic balancer is engineered to meet the specifications required by various GM vehicles such as Buick LeSabre and Pontiac Bonneville. Its 182 mm outside diameter and 34.94 mm inside diameter ensure proper fitment and compatibility with the engine block. Featuring six pulley grooves, this balancer supports serpentine drive belts, which are common in the specified vehicle models. The single mounting hole and included bolt and washer simplify installation, while the black finish and degree markings assist with accurate alignment during setup. The depth of 92.5 mm is designed to match OEM standards, ensuring reliable performance and vibration dampening.

Common Applications and Problem Resolution

• Reduces engine vibration and noise for smoother operation
• Prevents premature wear on crankshaft and accessories
• Corrects pulley misalignment issues
• Replaces worn or damaged harmonic balancers causing engine imbalance
• Supports proper serpentine belt routing and tension

Installation Notes and Tips

• Verify compatibility with Buick, Oldsmobile, and Pontiac models listed before installation
• Use the included bolt and washer for secure mounting; note that the center bolt is not included
• Align degree markings carefully to ensure correct positioning
• Inspect the serpentine belt and pulleys for wear during installation
• Follow the instruction sheet provided for torque specifications and installation sequence

Quality Assurance and Warranty

Dorman engine harmonic balancers are manufactured to meet or exceed OEM standards for durability and performance. The 594-003 part number undergoes rigorous quality control to ensure fit and function for Buick, Oldsmobile, and Pontiac vehicles. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in materials and workmanship.