Dorman 594-424 Engine Harmonic Balancer

Dorman 594-424 Harmonic Balancer

Dorman 594-424 is a direct replacement engine harmonic balancer built for vehicles that need reliable crankshaft vibration control. It uses a stress-resistant rubber bond to help absorb engine vibration, while ductile steel construction adds tensile and impact strength for long-term durability.

Compatible With 2001-2005 Buick Park Avenue and 2001-2003 Pontiac Bonneville, this harmonic balancer is a practical OE-style replacement for common vibration-related service needs. It also fits 2004-2007 Pontiac Grand Prix applications.

• Direct replacement harmonic balancer for selected GM applications
• Stress-resistant rubber bond helps absorb engine vibration
• Ductile steel construction for added strength and durability
• Black finish with 6-groove serpentine belt pulley design
• Package contents: harmonic balancer, key, and instruction sheet
• Part number 594-424 for easy identification and ordering

Detailed Product Overview

This Dorman harmonic balancer is engineered around the key dimensions needed for proper fitment, including a 28.95 inside diameter, 182 outside diameter, and 92.8 depth. It is designed for engines using a serpentine drive belt and a single mounting hole configuration. The balancer does not include a center bolt, washer, or degree markings, so it is intended as a straightforward replacement component for the original unit.

For buyers searching for a harmonic balancer for 2004-2007 Pontiac Grand Prix, or a replacement harmonic balancer for 2001-2005 Buick Park Avenue and 2001-2003 Pontiac Bonneville, Dorman 594-424 provides a direct-fit solution built to restore proper engine vibration damping. The part number 594-424 is also useful when cross-checking service records or matching the original component.

This part cross-references 12563266 and PB1355N for the same application.

What It Helps Address

• Engine vibration caused by a worn or separated balancer
• Crankshaft harmonic control issues from deteriorated rubber bonding
• Noise or imbalance related to a failing front-end engine component
• Fitment problems when replacing an original harmonic balancer on GM V6 applications
• Serpentine belt drive service where the balancer pulley surface is worn or damaged

Installation Notes

Verify pulley groove count, inside diameter, outside diameter, and depth against the original part before installation. Confirm the engine uses a serpentine belt setup and a single mounting hole configuration. Transfer any required keying components as specified by the service procedure, and follow the included instruction sheet during installation.

Quality Assurance

Dorman designs this harmonic balancer as a direct replacement component with materials selected for strength and vibration control. The ductile steel body and bonded rubber construction are intended to match the demands of everyday engine operation in compatible Buick and Pontiac applications.