1991 GMC C7000 Topkick, Truck Delivery, Coolant Reservoir, Fits to: GMC C7000 Topkick, (Used) 1991 GMC C7000 Topkick, COOLANT RESERVOIR/ RADIATOR OVERFLOW BOTTLE- Location: On Radiator, Material: Steel, Dimensions: L=13", D=6", For more information about this item, give us a call. We ship Worldwide! (CRG HEAVY TRUCK PARTS) 929 W PULASKI HWY ELKTON, MD 21921 - Dimensions: L=13", D=6" - Fill Location: On Radiator, Truck Year 1991, VIN 1GDM7H1J3MJ503259, Part Make Gmc 1GDM7H1J3MJ503259