Dorman 594-452 Engine Harmonic Balancer

Dorman 594-452 Harmonic Balancer

This Dorman harmonic balancer is a direct replacement for select Cadillac, Chevrolet, Buick, and GMC applications. 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.

Key Features

• Direct replacement harmonic balancer for OE-style fitment
• Stress-resistant rubber bond helps isolate engine vibration
• Ductile steel construction for added strength and durability
• 12-groove serpentine belt pulley design
• Degree markings included for timing reference
• Black finish with a regular grade type

Detailed Description

Dorman 594-452 is built for engines that use dual serpentine belts and a keyway-style mounting setup on many Cadillac CTS, Cadillac ATS, Cadillac STS, Cadillac SRX, Chevrolet Colorado, GMC Canyon, and Buick LaCrosse applications. The balancer measures 164 mm outside diameter, 37.97 mm inside diameter, and 94.8 mm in depth, with one mounting hole and a 12-groove serpentine drive belt interface. This part cross-references OE-style numbers 12572097 and PB1506N for the same application.

Use this harmonic balancer when servicing the crankshaft vibration damping system on compatible GM vehicles. The part number 594-452 is a practical replacement choice for drivers and technicians looking to restore smooth engine operation and maintain proper belt alignment on select Cadillac CTS and Cadillac ATS models, along with other listed applications.

What This Part Helps Address

• Engine vibration transmitted through the crankshaft
• Worn or deteriorated rubber bond in the balancer
• Crank pulley wobble or imbalance concerns
• Timing reference visibility with degree markings
• Serpentine belt drive issues related to balancer wear

Installation Notes and Tips

Verify engine configuration, belt setup, and keyway requirements before installation. This balancer does not include a bolt, washer, or center bolt, so reuse or source the correct fasteners separately as needed. Confirm pulley groove count, outside diameter, and depth against the original part before assembly. For best results, inspect the crankshaft snout, keyway, and belt condition during replacement.

Quality Assurance

Dorman manufactures 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 meet the demands of everyday engine service on the listed Cadillac, Chevrolet, Buick, and GMC applications.