OK request send SAA6D140E-5A S/N 535838-UP (For WA500-6) ENGINE COOLING SYSTEM CORROSION RESISTOR, WITHOUT CORROSION RESISTOR Section CORROSION RESISTOR, WITHOUT CORROSION RESISTOR SAA6D140E-5A S/N 535838-UP (For WA500-6) Komatsu: CORROSION RESISTOR (#535838-) e003001