CATCooling System

7W0491 Core As-Aftercooler — Cat 140h 143h

Name: 7W0491 Core As-Aftercooler — Cat 140h 143h
Brand: CAT
SKU: 7W0491
Availability: InStock

This aftercooler core is a critical heat exchanger within the engine's cooling and air intake system, responsible for cooling the charge air before it enters the cylinders. It is manufactured to meet rigorous OEM standards, offering superior thermal efficiency and durability compared to a worn or damaged unit. Operators may notice a loss of engine power or increased exhaust temperatures if this component is not functioning correctly.

Core As-Aftercooler – Part No 7W0491 – CAT Spare Part

Part Specifications

Brand	CAT
Category	Cooling System
Condition	Aftermarket — OEM Specification
Dispatch	Same-day from Mumbai (before 3 PM IST)
GST Invoice	Available — all orders
Export Docs	Commercial invoice, packing list, COO

Compatible Models

140h
143h
14h Na
160h
160h es
160h Na
163h Na
1673c
235b
330
330 L
3306
3306b
330b
330b L
545

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

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.

Failure Symptoms

Early signs of failure include visible coolant leaks from the aftercooler or a decrease in engine power output. If left unaddressed, internal leaks can lead to coolant entering the combustion chamber, causing white smoke and potential engine damage. Continued operation risks severe engine performance degradation and costly repairs.

Installation Tip

Ensure all mating surfaces are clean and free of debris before installing the new aftercooler core to guarantee a proper seal. Do not overtighten the mounting hardware, as this can damage the core or the mounting brackets.

Service Note

Inspect the turbocharger, intake piping, and radiator for any signs of damage or leaks when replacing the aftercooler core.

Part Type	Core As-Aftercooler
Material	Aluminum and steel
Application	Engine charge air cooling
Service Life	Replace as needed based on inspection
Compatibility	OEM specification
Condition	New — CTP aftermarket replacement

7W0491 Core As-Aftercooler — Cat 140h 143h

Compatible Models

Related CAT Parts

Ship This Part To Your Location

Installation & Application Notes

Failure Symptoms