1988 GMC G3500 7.4L V8; w/o A.C.;. 1989 GMC G3500 7.4L V8; w/o A.C.;. 1990 GMC G3500 7.4L V8;. 1991 GMC G3500 7.4L V8; w/o A.C.;. Accessory Drive Belt Idler Pulley. IDLER/TENSIONER PULLEY, LT DUTY.
Accessory Drive Belt Idler Pulley-Belt Drive Idler Pulley Litens 900401A
Accessory Drive Belt Idler Pulley-Belt Drive Idler Pulley Litens 900244A
Accessory Drive Belt Idler Pulley-Belt Drive Idler Pulley Litens 900678A
Accessory Drive Belt Idler Pulley-Belt Drive Idler Pulley Litens 900249A
Dayco Accessory Drive Belt Idler Pulley Accessory Drive Belt Tensioner Pulley