Dorman 594-161 Engine Harmonic Balancer

Overview of Dorman Engine Harmonic Balancer 594-161

The Dorman 594-161 engine harmonic balancer is designed for select Buick, Oldsmobile, and Pontiac vehicles, including the 98, Bonneville, and Park Avenue models. This component helps reduce engine vibration and maintain smooth operation by balancing the crankshaft's rotational forces.

• Inside diameter: 34.87 mm
• Outside diameter: 182 mm
• 12 pulley grooves for serpentine drive belts
• Single mounting hole design
• Regular grade type for standard engine applications
• Depth of 92.5 mm
• Black finish with degree markings for precise alignment
• Includes balancer, woodruff key, and instruction sheet
• Bolt and washer included; center bolt not included

Detailed Product Description

The Dorman 594-161 harmonic balancer is engineered to meet the specifications required by Buick, Oldsmobile, and Pontiac vehicles such as the 98, Bonneville, and Park Avenue. Featuring a 34.87 mm inside diameter and a 182 mm outside diameter, this balancer accommodates serpentine drive belts with 12 pulley grooves. The single mounting hole and regular grade type ensure compatibility with standard engine configurations. Its 92.5 mm depth and black finish with degree markings allow for accurate installation and reliable performance. The package includes the balancer itself, a woodruff key for secure fitment, and an instruction sheet to assist with installation.

Common Applications and Problem Resolution

• Reduces crankshaft vibration to prevent premature engine wear
• Helps maintain proper timing and accessory belt alignment
• Addresses issues with belt slippage or misalignment on serpentine systems
• Replaces worn or damaged harmonic balancers causing engine noise or rough idling
• Supports engine longevity by stabilizing rotational forces

Installation Notes and Tips

When installing the Dorman 594-161 harmonic balancer, ensure the engine is cool and the crankshaft is clean and free of debris. Use the included woodruff key to align the balancer correctly on the crankshaft. The degree markings on the balancer assist with precise positioning. Note that the center bolt is not included, so reuse the original or obtain a compatible replacement. Tighten the mounting bolt and washer securely to manufacturer torque specifications to avoid loosening during operation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 594-161 harmonic balancer undergoes quality checks to ensure durability and reliable performance in compatible Buick, Oldsmobile, and Pontiac vehicles. Warranty coverage details should be confirmed with the product documentation or supplier.