Combustion and temperature management system for diesel internal combustion engines for land vehicles, namely, a fuel injection system primarily comprised of fuel injectors and also containing fuel supply tanks, fuel lines, fuel line isolation valves, fuel injection nozzles, fuel injection control valves, and electronic fuel injection control modules; components for a combustion and temperature management system for diesel internal combustion engines, namely, fuel injector parts for land vehicles, namely, fuel injectors, fuel supply tanks, fuel lines, fuel line isolation valves, fuel injection nozzles, fuel injection control valves, and electronic fuel injection control systems