Autotecnica Belt Tensioner - GM1414613 Part #: GM1414613 Line: AUT Autotecnica Belt Tensioner Limited Lifetime Warranty Color: Silver Contact Surface: Grooved Flanged: Yes Material: Aluminum Number Of Pulleys: 1 Pulley Outside Diameter (mm): 80mm Pulley Width (mm): 29mm Belt Type: Serpentine Pulley Width (in): 1-1/8 Inch Pulley Outside Diameter (in): 3-1/8 Inch Number Of Mounting Holes: 1 Number Of Pulley Grooves: 6 Show More Show Less