OEM-specification Komatsu Cooling Component. Part number 104-03-41230. Compatible with Komatsu Excavator Pc200 8 Pc220 8 Pc270 8 Pc50Ud 2 Pc60 7 Pc70 7 Pc75Uu 3 Pc78Us 5 Dozer D31A 20 D37A 5 D39Ex 21 Dnh031 3L. Fits: PC75UD3, HM3002R, DRT0371BE, DRT0312H.
Always verify with serial number before ordering.
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Flush cooling system with distilled water before refilling. Use pre-mixed coolant — never plain water, which causes corrosion. Pressure-test system after any cooling repair. Check thermostat by immersing in hot water — should open at rated temperature.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.