Dorman 594-309 Engine Harmonic Balancer

Dorman 594-309 Harmonic Balancer

Dorman 594-309 is a direct replacement engine harmonic balancer for a wide range of GM and Saturn 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 tensile and impact strength
• 6-groove pulley design for serpentine belt systems
• Black finish with degree markings for timing reference
• Includes balancer, Woodruff key, and instruction sheet
• Bolt and washer included

Detailed Description

This Dorman harmonic balancer, part number 594-309, is built for engines that rely on a serpentine drive belt and a 6-groove pulley layout. It is engineered as a direct replacement for vehicles such as the Chevrolet Malibu, Chevrolet HHR, Buick Regal, Buick Verano, and GMC Terrain, along with additional Saturn, Pontiac, Saab, and Oldsmobile applications listed in the fitment data. The balancer’s rubber bond is used to absorb crankshaft vibration, while the steel body supports durability under engine load.

This part cross-references PowerBond by Dayco PB1515N for the same application.

What It Is Used For

• Replacing a worn or separated crankshaft harmonic balancer
• Addressing engine vibration at idle or under load
• Restoring proper belt drive alignment on serpentine systems
• Correcting timing reference visibility with degree markings
• Servicing GM 2.2L and 2.4L applications that use this balancer design

Installation Notes and Tips

• Verify engine configuration, belt rib count, and balancer style before installation.
• Fits 2012-2017 Buick Regal, N/A, w/5 Rib Serpentine Belt.
• Fits 2012-2017 Buick Verano, N/A.
• Fits 2010-2017 Chevrolet Equinox, N/A.
• Fits 2010-2017 GMC Terrain, N/A.
• Fits 2011-2015 Buick LaCrosse, N/A, w/5 Rib Serpentine Belt.
• Fits 2008-2015 Chevrolet Captiva Sport, N/A, w/5 Rib Serpentine Belt.
• Fits 2008-2014 Chevrolet Malibu, N/A, w/5 Rib Serpentine Belt.
• Fits 2006-2011 Chevrolet HHR, N/A.
• Fits 2006-2011 Chevrolet HHR, N/A, w/Slip Fit Balancer.
• Fits 2005-2010 Chevrolet Cobalt, N/A.
• Fits 2007-2010 Pontiac G5, N/A.
• Fits 2009-2010 Pontiac G6, N/A, wo/RPO Code NU6 (California Emissions, PZEV).
• Fits 2002-2010 Saturn Vue, N/A.
• Fits 2003-2009 Saab 9-3, N/A.
• Fits 2008-2009 Saturn Aura, N/A.
• Fits 2004-2008 Chevrolet Malibu, N/A.
• Fits 2006-2008 Pontiac G6, N/A.
• Fits 2003-2007 Saturn Ion, N/A.
• Fits 2006 Pontiac G4, N/A.
• Fits 2005-2006 Pontiac Pursuit, N/A.
• Fits 2002-2005 Chevrolet Cavalier, N/A.
• Fits 2004-2005 Chevrolet Classic, N/A.
• Fits 2002-2005 Pontiac Grand Am, N/A.
• Fits 2002-2005 Pontiac Sunfire, N/A.
• Fits 2002-2004 Oldsmobile Alero, N/A.
• Fits 2004 Saturn Ion, N/A, L4 134CID 2.2L.
• Fits 2004 Saturn L300, N/A.
• Fits 2001-2003 Saturn L200, N/A.
• Fits 2001-2003 Saturn LW200, N/A.
• Fits 2001-2002 Saturn L100, N/A.
• Fits 2000 Saturn LS, N/A.
• Fits 2000 Saturn LS1, N/A.
• Fits 2000 Saturn LW1, N/A.

Quality Assurance

Dorman manufactures this replacement balancer with a steel construction and bonded rubber isolator to meet the demands of everyday engine operation. The included degree markings and OE-style design support accurate service on compatible Chevrolet Malibu, Buick Verano, and GMC Terrain applications, as well as the other listed fitments.