CATEngine Parts

5i-8010 Thermostat — Cat S6KT S6K

This is a CAT Thermostat, a crucial component in the engine's cooling system responsible for regulating coolant flow and maintaining optimal operating temperature. It opens and closes to control the passage of coolant through the radiator, ensuring the engine doesn't overheat or run too cold. A faulty thermostat can lead to engine overheating, poor fuel efficiency, and increased emissions.

Thermostat – Part No 5i-8010 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine Parts
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

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeThermostat
MaterialMetal, Rubber
ApplicationEngine Cooling System
Service LifeReplace every 2,000 hrs or annually
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The engine temperature gauge may fluctuate erratically or remain consistently too high or too low. If the thermostat sticks closed, the engine will quickly overheat, potentially leading to severe internal damage. If it sticks open, the engine may run inefficiently and struggle to reach optimal operating temperature.

Installation Tip

Ensure the thermostat is installed in the correct orientation with the spring facing the correct direction as per the service manual. Do not force the thermostat into the housing if it does not seat properly.

Service Note

Inspect the radiator and hoses for leaks or damage, and flush the cooling system before installing the new thermostat.