CATCooling System

4W4987 Cooling Component — Cat 633D 637D

This cooling component is integral to the engine's cooling system, designed to dissipate heat effectively and maintain optimal operating temperatures. It ensures the engine runs efficiently by preventing overheating, which can lead to reduced performance and accelerated wear. Failure symptoms typically include a rapid increase in engine temperature, visible steam, or coolant loss.

Cooling Component – Part No 4W4987 – 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 TypeCooling Component (Radiator/Heat Exchanger)
MaterialAluminum alloy, Copper
ApplicationEngine cooling system
Service LifeReplace as needed based on inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

An overheated engine gauge or visible coolant leaks are common initial signs of a failing cooling component. If ignored, this can lead to a significant loss of engine power and potential damage to critical engine internals. Continued operation under high heat conditions can result in extensive and costly repairs.

Installation Tip

Ensure that all sealing surfaces are clean and free of any old gasket material before installing the new component. Avoid using sharp objects to clean the mounting area, as this could damage the component or surrounding parts.

Service Note

When replacing the cooling component, it is recommended to check the condition of the coolant hoses and the water pump impeller for wear.