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The Gates DriveAlign idler pulley for 2002–2009 GMC Envoy and Chevrolet TrailBlazer is a direct-fit replacement that manages belt routing and alignment in the accessory drive. It restores proper pulley positioning to reduce belt noise and slippage, helping maintain reliable operation of alternator, A/C and power steering drives on the listed vehicles. Use when the original idler shows wear or bearing noise.
Gates 02-09 GMC Envoy / 02-09 Chevrolet Trailblazer DriveAlign Idler Pulley
