OEM-specification Komatsu Cooling Component. Part number 421-03-31181. Compatible with Komatsu Loader Wa200 8 Wa270 7 Wa270 8 Wa320 8 Wa380 5 Wa400 5 Wa430 5 Wa470 5 Wa480 6.
Always verify with serial number before ordering.
Parts Trading Company · Mumbai, Est. 1956 · Same-day dispatch · Ships worldwide · GST invoice included
From the same category — may also be needed
Full shipping information on regional pages · Air freight 2–12 days · GST invoice for India
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.