Dorman 594-579 Engine Harmonic Balancer

Dorman 594-579 Harmonic Balancer

Dorman 594-579 is a direct replacement engine harmonic balancer for select Ford Freestar and Ford Windstar applications. It uses a stress-resistant rubber bond to help absorb engine vibration, while the cast iron construction and standard replacement design support dependable service in the engine bay.

Key Features

• Direct replacement harmonic balancer for select Ford applications
• Stress-resistant rubber bond helps isolate engine vibration
• Cast iron construction for durability
• Five-groove pulley design for serpentine drive belt systems
• Standard replacement grade for OE-style fit and function
• Black and silver finish

Product Details

This Dorman harmonic balancer, part number 594-579, is built for 2004-2007 Ford Freestar and 2001-2003 Ford Windstar models. It is engineered to absorb torsional vibration from the crankshaft and maintain stable accessory drive operation in serpentine belt systems. The direct replacement format supports a straightforward match to the original engine configuration, and the cast iron body is built to meet stringent tensile and impact strength standards.

This part cross-references ATP 102322 for the same application.

Common Symptoms It May Address

• Engine vibration felt through the crankshaft or accessory drive
• Visible wear, cracking, or separation in the balancer rubber bond
• Serpentine belt wobble or inconsistent pulley tracking
• Noise from the front of the engine related to crankshaft damping issues
• Accessory drive imbalance caused by a failing harmonic balancer

Installation Notes

Verify pulley groove count, mounting dimensions, and engine application before installation. This harmonic balancer uses a serpentine drive belt layout and does not include a center bolt, mounting hardware, or degree markings. Confirm crankshaft and accessory drive alignment during replacement to help ensure proper operation.

Quality Assurance

Dorman builds this harmonic balancer as a standard replacement part with a stress-resistant rubber bond and cast iron construction to support durability and vibration control. Part number 594-579 is intended for direct-fit service on the listed Ford Freestar and Ford Windstar applications.