Dorman 594-034 Engine Harmonic Balancer

Overview of the Dorman Engine Harmonic Balancer 594-034

The Dorman 594-034 engine harmonic balancer is designed for reliable performance in select Buick, Chevrolet, Oldsmobile, and Pontiac vehicles. This component helps reduce engine vibration and maintain smooth operation in models such as the Buick LeSabre, Chevrolet Lumina APV, and Pontiac Bonneville.

• Inside diameter: 34.87 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 86.5 mm
• Black finish with degree markings for precise installation
• Package includes balancer, woodruff key, and instruction sheet

Detailed Product Description

The Dorman 594-034 engine harmonic balancer is engineered to fit a range of GM vehicles, including Buick 88 and 98, Chevrolet Silhouette and Trans Sport, Oldsmobile Riviera, and Pontiac Regal. Its 34.87 mm inside diameter and 182 mm outside diameter accommodate specific engine configurations requiring a six-groove serpentine belt pulley. The balancer’s regular grade type and black finish provide durability and corrosion resistance. Degree markings on the balancer assist with accurate timing and installation alignment. The included bolt and washer simplify mounting, while the woodruff key ensures secure fitment on the crankshaft.

Compatible Vehicles and Applications

This harmonic balancer is compatible with the following makes and models:

• Buick 88, 98, LeSabre, Park Avenue
• Chevrolet Lumina APV, Silhouette, Trans Sport
• Oldsmobile Bonneville, Riviera
• Pontiac Regal

Common Issues Addressed by the Harmonic Balancer

• Reduces engine vibration and crankshaft stress
• Prevents premature wear of engine components
• Maintains proper serpentine belt alignment
• Helps avoid timing inaccuracies due to crankshaft movement
• Minimizes noise and harshness during engine operation

Installation Notes and Tips

• Verify compatibility with your vehicle’s make and model 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 timing setup
• Inspect the serpentine belt and pulley grooves for wear during installation
• Follow the instruction sheet provided for step-by-step guidance

Quality Assurance and Warranty

Dorman manufactures this engine harmonic balancer to meet or exceed OEM specifications for fit and function. The product undergoes quality control testing to ensure durability and performance. While specific warranty details are not provided here, Dorman typically offers limited warranties on their engine components. Consult the product packaging or Dorman’s official resources for warranty information.