OK request send SAA6D170E-5E S/N 511657-UP (For D375A-6) ENGINE COOLING SYSTEM Section ENGINE COOLING SYSTEM SAA6D170E-5E S/N 511657-UP (For D375A-6) Komatsu: CORROSION RESISTOR e004000 WATER PUMP e002000 COOLING FAN e001000 THERMOSTAT HOUSING e003000