Dorman 594-318 Engine Harmonic Balancer

Dorman 594-318 Harmonic Balancer

Dorman 594-318 is a direct replacement engine harmonic balancer for select Ford, Mazda, and Mercury 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 fit and function
• Stress-resistant rubber bond helps isolate engine vibration
• Ductile steel construction for added strength and durability
• Black finish with degree markings for timing reference
• Serpentine drive belt type application
• Includes harmonic balancer and Woodruff key

Detailed Description

This Dorman harmonic balancer, part number 594-318, is built for engines that need reliable vibration control and stable crankshaft operation. The bonded rubber element helps absorb torsional vibration, while the steel body is engineered for strength under load. It is a practical replacement for vehicles such as the Ford Ranger, Ford Focus, Ford Escape, Ford Transit Connect, Mazda B2300, Mazda Tribute, and Mercury Mariner. This part cross-references ATP 102286 for the same application.

Compatible With 2001-2012 Ford Ranger, 2003-2011 Ford Focus, 2005-2008 Ford Escape, 2010-2013 Ford Transit Connect, 2001-2010 Mazda B2300, 2005-2008 Mercury Mariner, and 2005-2008 Mazda Tribute. The Dorman 594-318 is also referenced by part numbers 1F2011371 and 1S7Z6312BA.

What It Helps Address

• Engine vibration caused by a worn or separated balancer
• Crankshaft harmonic issues that can affect smooth operation
• Timing reference visibility with degree markings
• Wear-related replacement needs on high-mileage engines
• Fitment concerns when replacing an OE-style balancer on listed Ford, Mazda, or Mercury models

Installation Notes and Tips

Verify pulley alignment, crankshaft keyway engagement, and belt routing before installation. Confirm the serpentine belt setup and compare the original balancer dimensions and timing marks to the replacement part. Use the included Woodruff key as specified by the application, and follow the vehicle service procedure for torque and inspection steps.

Quality Assurance

Dorman builds this harmonic balancer as a direct replacement component with a rubber isolator bond and ductile steel construction for dependable service in the listed applications.