Gates DriveAlign Belt Tensioner - 39474 Part #: 39474 Line: GAT Gates DriveAlign Belt Tensioner Limited Lifetime Warranty Contact Surface: Smooth Backside Flanged: No Material: Thermoplastic Number Of Pulleys: 1 Pulley Outside Diameter (mm): 70mm Pulley Width (mm): 25mm Belt Type: Serpentine Pulley Width (in): 15/16 Inch Pulley Outside Diameter (in): 2-3/4 Inch Number Of Mounting Holes: 2 Number Of Pulley Grooves: 0 Pulley Inside Diameter (mm): 17mm Show More Show Less