This direct replacement harmonic balancer features a stress-resistant rubber bond to properly absorb engine vibration. Stringent standards help ensure excellent tensile and impact strength for greater durability. This part is ompatible with the following vehicles. Before purchasing, enter your vehicle specifications in the Amazon Garage to confirm correct fitment. [Chevrolet Express 2500: 2006, 2007, 2008, 2009, 2010] - [Chevrolet Express 3500: 2006, 2007, 2008, 2009, 2010] - [Chevrolet Express 4500: 2009, 2010] - [Chevrolet Silverado 2500 HD Classic: 2007] - [Chevrolet Silverado 2500 HD: 2006, 2007, 2008, 2009, 2010] - [Chevrolet Silverado 3500 Classic: 2007] - [Chevrolet Silverado 3500 HD: 2007, 2008, 2009, 2010] - [Chevrolet Silverado 3500: 2006] - [GMC Savana 2500: 2006, 2007, 2008, 2009, 2010] - [GMC Savana 3500: 2006, 2007, 2008, 2009, 2010] - [GMC Savana 4500: 2009, 2010] - [GMC Sierra 2500 HD Classic: 2007] - [GMC Sierra 2500 HD: 2006, 2007, 2008, 2009, 2010] - [GMC Sierra 3500 Classic: 2007] - [GMC Sierra 3500 HD: 2007, 2008, 2009, 2010] - [GMC Sierra 3500: 2006] Ideal replacement - this harmonic balancer assembly exactly matches the fit and function of the original harmonic balancer for a direct replacement Durable construction - stringent specifications and careful construction help ensure longevity Thoroughly tested - this harmonic balancer has undergone dimensional verification, material validation and functional testing Trustworthy quality - backed by a team of product experts in the United States and more than a century of automotive experience Ensure fit - Input your vehicle into the garage tool and check Confirmed Fit bar at the top of the page. If there is an “i” in a blue circle, additional verification is needed. Please hover over the i to verify fitment notes match your vehicle. Brand Dorman Item Weight 20.1 pounds Manufacturer Dorman Products OEM Part Number PB1649N; 97374383 Item model number 594-565 Product Dimensions 8.8 x 8.4 x 2.9 inches Manufacturer Part Number 594-565