CATCooling System

7l0103 6L8983 — Cat 320C 320D

This component is a crucial part of the engine's cooling system, regulating the flow of coolant to maintain optimal operating temperatures. It is manufactured to precise standards to ensure efficient heat exchange and durability, performing its function reliably over time. Operators may notice the engine running consistently hotter than usual or experiencing reduced heating performance in the cab when this part is failing.

6L8983 – Part No 7l0103 – CAT Spare Part
Part Specifications
BrandCAT
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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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.

Part TypeThermostat Assembly
MaterialBrass and Stainless Steel
ApplicationEngine Cooling System
Service LifeReplace every 2,000 hrs or annually
CompatibilityOEM specification
ConditionNew — CTP aftermarket replacement

Failure Symptoms

A failing thermostat assembly may cause the engine temperature to fluctuate erratically or remain too low, leading to inefficient operation. If the thermostat becomes stuck closed, the engine can quickly overheat. Conversely, if it stays open, the engine may not reach its optimal operating temperature, impacting performance and fuel economy.

Installation Tip

Ensure the thermostat is installed in the correct orientation, with the spring side facing the engine block, to allow proper coolant flow. Always use a new gasket and ensure the sealing surface is clean to prevent leaks.

Service Note

Inspect the radiator hoses and coolant for any signs of degradation when replacing the thermostat assembly.