CATEngine Parts

248-5513-139-3550 Thermostat And Gasket Kit — Cat C15 3406

This is a thermostat and gasket kit that regulates the engine's operating temperature by controlling coolant flow. Manufactured to meet OEM specifications, it ensures precise temperature management for optimal engine performance and longevity, unlike a stuck or leaking thermostat. Operators may notice the engine running too cool, taking a long time to warm up, or conversely, overheating if this kit fails.

Thermostat And Gasket Kit – Part No 248-5513-139-3550 – 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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Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

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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 and Gasket Kit
MaterialBrass, rubber, stainless steel
ApplicationEngine cooling system
Service LifeReplace every 2,000 hrs or annually
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A primary symptom of a faulty thermostat is the engine temperature gauge fluctuating erratically or consistently reading outside the normal range. If stuck open, the engine may run too cool, leading to poor fuel efficiency and increased wear; if stuck closed, it will rapidly overheat. Failure to regulate temperature can cause significant engine damage.

Installation Tip

Ensure the thermostat is installed in the correct orientation, with the spring-loaded side typically facing the engine block. Always use a new gasket and ensure the sealing surface is clean and smooth.

Service Note

Inspect the radiator, coolant hoses, and water pump for leaks or damage when replacing the thermostat and gasket kit.