Dorman 594-452 Engine Harmonic Balancer

Overview of the Dorman Engine Harmonic Balancer 594-452

The Dorman 594-452 engine harmonic balancer is designed for reliable performance in select Buick, Cadillac, Chevrolet, and GMC vehicles. Engineered to meet OEM specifications, this balancer helps maintain engine smoothness and reduce vibration in models like the Buick LaCrosse and Chevrolet Colorado.

• Inside diameter: 37.97 mm for precise fitment
• Outside diameter: 164 mm ensuring proper pulley alignment
• 12 pulley grooves compatible with serpentine drive belts
• Single mounting hole for secure installation
• Regular grade type for standard engine applications
• Depth of 94.8 mm to match engine block requirements
• Black finish with degree markings for accurate timing adjustments
• Does not include bolt, washer, or center bolt

Detailed Product Description

The Dorman 594-452 engine harmonic balancer is a critical component in the engine block assembly, designed to reduce torsional vibration and protect the crankshaft from damage. Its 37.97 mm inside diameter and 164 mm outside diameter ensure a precise fit on compatible engines. The 12-groove pulley accommodates serpentine drive belts commonly used in Buick ATS, Cadillac CTS, and GMC Canyon models. The balancer’s single mounting hole and 94.8 mm depth align with factory specifications, providing a secure and stable connection to the engine. The black finish with degree markings allows for accurate timing and maintenance checks during installation or service.

Compatible Vehicles and Applications

This harmonic balancer is compatible with a range of vehicles, including:

• Buick LaCrosse and ATS
• Cadillac CTS, SRX, and STS
• Chevrolet Colorado
• GMC Canyon

It is designed specifically for engines requiring a serpentine drive belt system and regular grade harmonic balancer.

Common Issues Addressed by the Dorman 594-452

• Engine vibration and noise caused by worn or damaged balancers
• Crankshaft stress and potential damage from unbalanced engine rotation
• Misalignment of serpentine belts leading to premature belt wear
• Inaccurate engine timing due to missing or unclear degree markings
• Failure of engine accessories driven by the harmonic balancer pulley

Installation Notes and Tips

Ensure the engine is cool before installation. Verify the inside diameter matches the crankshaft size for a proper fit. Use appropriate tools to align the single mounting hole and secure the balancer without the included bolt or washer, as these must be sourced separately. Check the degree markings during installation to confirm correct timing alignment. It is recommended to inspect the serpentine belt and related components for wear during replacement.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing dependable performance for engine harmonic balancers. While this product does not include mounting hardware, it is engineered for durability and precision fitment. Warranty coverage details should be confirmed through the original purchase source or Dorman’s official documentation.