Dorman 594-004 Engine Harmonic Balancer

Overview of Dorman Engine Harmonic Balancer 594-004

The Dorman Engine Harmonic Balancer 594-004 is designed to provide reliable vibration dampening for select GM vehicles. Engineered for compatibility with Buick, Chevrolet, Oldsmobile, and Pontiac models, this harmonic balancer helps maintain engine smoothness and longevity.

• 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 92.5 mm
• Black finish with degree markings for precise installation
• Package includes balancer, woodruff key, and instruction sheet

Detailed Product Description

This Dorman harmonic balancer (part number 594-004) is crafted to fit a range of GM vehicles including Buick LeSabre, Chevrolet Camaro, Oldsmobile 88, Pontiac Firebird, and others. The balancer features a 34.87 mm inside diameter and a 182 mm outside diameter, accommodating serpentine drive belts with six pulley grooves. Its regular grade type construction ensures durability under normal operating conditions. The included bolt and washer simplify installation, while the black finish and degree markings assist with accurate alignment. The depth of 92.5 mm supports proper fitment within the engine block assembly.

Compatible Vehicles and Applications

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

• Buick: LeSabre, Park Avenue, Riviera, Regal, Century
• Chevrolet: Camaro, Impala, Lumina, Monte Carlo
• Oldsmobile: 88, 98, LSS, Intrigue
• Pontiac: Firebird, Grand Prix, Bonneville, Trans Sport, Silhouette

Common Issues Addressed by This Harmonic Balancer

• Engine vibration and noise caused by crankshaft imbalance
• Premature wear of engine components due to harmonic resonance
• Drive belt misalignment or slippage on pulley grooves
• Crankshaft seal leaks resulting from worn balancer components
• Difficulty maintaining engine timing due to missing or damaged degree markings

Installation Notes and Tips

• Verify the inside diameter and pulley groove count match your vehicle’s specifications
• Use the included woodruff key to ensure proper crankshaft alignment
• Torque the mounting bolt and washer to manufacturer specifications; center bolt not included
• Check degree markings during installation for accurate positioning
• Inspect the serpentine belt for wear and replace if necessary during installation

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 594-004 harmonic balancer undergoes rigorous quality control to ensure durability and performance. While specific warranty details vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Refer to Dorman’s official documentation for exact warranty terms.