CATEngine Parts

245-4621 Aftercooler — Cat 3512 C27

This is a high-performance aftercooler designed to reduce the temperature of compressed air exiting the turbocharger before it enters the engine cylinders, optimizing combustion efficiency and power output. It is built to withstand high temperatures and pressures, meeting strict OEM standards for heat exchange performance, unlike a clogged or leaking aftercooler that restricts airflow and reduces engine power. Operators may notice a significant loss of engine power, increased exhaust temperatures, or visible coolant leaks if this component fails.

Aftercooler – Part No 245-4621 – 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 TypeEngine Aftercooler
MaterialAluminum, Stainless Steel
ApplicationEngine Air Intake System
Service LifeReplace as needed based on inspection and performance
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first symptom of a failing aftercooler is often a noticeable reduction in engine horsepower and throttle response. If the issue persists, exhaust gas temperatures may begin to rise, and visible coolant or oil may appear in the intake or exhaust system. Continued operation with a compromised aftercooler can lead to engine overheating and potential internal damage.

Installation Tip

Ensure all mating surfaces for the aftercooler seals are perfectly clean and free of debris to prevent air or coolant leaks. Do not reuse old gaskets or O-rings; always install new ones with the replacement aftercooler.

Service Note

Inspect the turbocharger, intake manifold, and all associated plumbing for leaks or damage when replacing the aftercooler.