OER Parts offers a wide selection of OE Fuel Tanks for your 1972 GMC K25/K2500 Suburban. OER Parts offers 1972 GMC K25/K2500 Suburban Fuel Tanks, 1972 GMC K25/K2500 Suburban Zinc Coated Fuel Tanks and Kits, 1972 GMC K25/K2500 Suburban Stainless Steel Fuel Tanks and Kits, and 1972 GMC K25/K2500 Suburban Ni-Terne Coated Steel Fuel Tanks and Kits.