KomatsuCooling System

203-03-31110 Oil Cooler — Komatsu PC120 PC100U

OEM-specification Komatsu Oil Cooler. Part number 203-03-31110. Compatible with Komatsu Excavator Pc120 2 Pc120 1 Pc100U 2 Pc100L 2 Pc100L 1 Pc100 2 Pc100 1. Fits: PC78US5, PC1002.

Oil Cooler – Part No 203-03-31110 – Komatsu Spare Part
Part Specifications
BrandKomatsu
CategoryCooling System
ConditionAftermarket — OEM Specification
DispatchSame-day from Mumbai (before 3 PM IST)
GST InvoiceAvailable — all orders
Export DocsCommercial invoice, packing list, COO

Compatible Models

Always verify with serial number before ordering.

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Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

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Full shipping information on regional pages · Air freight 2–12 days · GST invoice for India

Installation & Application Notes

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.