CATEngine Parts

281-3534 Aftercooler — Cat 320D

This aftercooler is a vital heat exchanger within the engine's air intake system, responsible for cooling the compressed air charge before it enters the cylinders. It is built to withstand high temperatures and pressures, offering superior thermal efficiency over a degraded or leaking unit. Symptoms of a failing aftercooler include a noticeable loss of engine power, increased exhaust gas temperature, and potentially white smoke from the exhaust.

Aftercooler – Part No 281-3534 – 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 alloy, Steel
ApplicationEngine air intake system
Service LifeReplace when performance degrades or leaks are detected
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of an aftercooler issue is often a reduction in engine power, especially under load. If left unaddressed, this can lead to overheating and increased fuel consumption. Continued operation risks significant engine damage due to inadequate cooling of the intake charge.

Installation Tip

Ensure all sealing surfaces are perfectly clean and free from any old gasket material before installing the new aftercooler. Do not overtighten the mounting bolts, as this can distort the housing and cause leaks.

Service Note

Inspect all associated charge air hoses and clamps for cracks, leaks, or signs of wear when replacing the aftercooler.