It can be replaced, but it must be replaced by a regular tanker manufacturer. The tanker itself belongs to the dangerous goods transport vehicle, because it transports all kinds of oil all the year round, the danger coefficient of the tank is very high. Blind disassembly by non-professionals will easily lead to fire and explosion in the tank and accidents. Therefore, it is suggested to find a professional tanker manufacturer to disassemble the old fuel tank and replace it with a new one.