Dorman 594-158 Engine Harmonic Balancer

Overview of Dorman Engine Harmonic Balancer 594-158

The Dorman 594-158 engine harmonic balancer is designed for select Buick, Oldsmobile, and Pontiac vehicles. This component helps reduce engine vibration and maintain smooth operation in models such as the Pontiac Firebird and Buick LeSabre.

• Inside diameter: 34.9 mm
• Outside diameter: 172.6 mm
• Depth: 82.4 mm
• Single mounting hole for secure installation
• Serpentine drive belt compatibility
• Includes bolt and washer for mounting
• Gray finish with degree markings for precise alignment
• Package includes balancer, woodruff key, and instruction sheet

Detailed Product Description

The Dorman 594-158 engine harmonic balancer is engineered to fit a range of classic and late-model vehicles from Buick, Oldsmobile, and Pontiac, including the Pontiac Grand Prix, Oldsmobile Delta 88, and Buick Century. With an outside diameter of 172.6 mm and an inside diameter of 34.9 mm, this balancer is designed to match factory specifications for optimal performance. The single mounting hole and included bolt and washer ensure a secure fit, while the serpentine drive belt compatibility supports modern belt systems. The gray finish and degree markings assist with accurate installation and timing adjustments. This balancer comes with a woodruff key and instruction sheet to facilitate proper setup.

Common Applications and Problem Resolution

• Reduces engine vibration and noise in Buick LeSabre and Pontiac GTO engines
• Prevents premature wear of crankshaft and accessory components
• Helps maintain proper timing and engine balance in Oldsmobile 98 and Pontiac Catalina
• Addresses issues related to cracked or worn harmonic balancers
• Supports serpentine belt drive systems in various Buick and Pontiac models

Installation Notes and Tips

• Verify compatibility with your specific Buick, Oldsmobile, or Pontiac model before installation
• Use the included bolt and washer to secure the balancer firmly to the crankshaft
• Align degree markings carefully to ensure correct timing and balance
• Inspect the woodruff key slot and replace the key if worn or damaged
• Follow the provided instruction sheet for step-by-step installation guidance

Quality Assurance and Warranty

Dorman engine harmonic balancers are manufactured to meet or exceed OEM standards for durability and performance. The 594-158 part undergoes rigorous quality control to ensure reliable operation in compatible Buick, Oldsmobile, and Pontiac vehicles. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Consult product documentation for exact warranty terms.