OER Parts offers a wide selection of Oil System & Parts for your 1979 GMC Caballero. OER Parts offers 1979 GMC Caballero Bypass Valves, 1979 GMC Caballero Dipsticks and Tubes, 1979 GMC Caballero Filter Adapters, 1979 GMC Caballero Oil Coolers, 1979 GMC Caballero Oil Filters, 1979 GMC Caballero Oil Pan Baffles, 1979 GMC Caballero Oil Pans, 1979 GMC Caballero Oil Pickup Tubes, 1979 GMC Caballero Oil Pumps, and 1979 GMC Caballero Oil Senders.