ACDelco Idler Pulley - 24590404 Part #: 24590404 Line: ACD ACDelco Idler Pulley 2 Year LIMITED WARRANTY Contact Surface: Grooved Flanged: Yes Material: Thermoplastic Pulley Outside Diameter (mm): 80mm Pulley Width (mm): 26mm Bracket Included: No Pulley Type: Idler Pulley Width (in): 1 Inch Bushing Included: No Dust Shield Included: Yes Pulley Outside Diameter (in): 3-1/8 Inch Retainer Included: Yes Spacer Included: No Number Of Pulley Grooves: 6 Pulley Inside Diameter (in): 1.570 Inch Pulley Inside Diameter (mm): 40mm Show More Show Less