OK request send SAA6D140E-5AH S/N 630336-UP (For D275A-5R) ENGINE COOLING SYSTEM Section ENGINE COOLING SYSTEM SAA6D140E-5AH S/N 630336-UP (For D275A-5R) Komatsu: CORROSION RESISTOR e002000 WATER PUMP e001000 CORROSION RESISTOR, FOR HARD WATER AREA ARRANGEMENT e003000 CORROSION RESISTOR e004000