OK request send SAA6D140E-5AG S/N 630332-UP (For D155A-6R) ENGINE COOLING SYSTEM Section ENGINE COOLING SYSTEM SAA6D140E-5AG S/N 630332-UP (For D155A-6R) Komatsu: CORROSION RESISTOR, WITHOUT CORROSION RESISTOR e002000 WATER PUMP e001000 CORROSION RESISTOR, HARD WATER AREA ARRANGEMENT e003000 CORROSION RESISTOR, WITHOUT CORROSION RESISTOR e004000