CATEngine Parts

186-0117 Aftercooler — Cat

This is an engine aftercooler, also known as an intercooler, which cools the compressed air from the turbocharger before it enters the engine cylinders. By lowering the air temperature, it increases air density, allowing more oxygen into the combustion chamber for improved power and efficiency. A leaking or clogged aftercooler will result in a loss of engine power, increased exhaust temperatures, and potentially higher fuel consumption.

Aftercooler – Part No 186-0117 – 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 and steel
ApplicationTurbocharged engine air intake system
Service LifeReplace if leaks are detected or performance drops
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The initial symptom of a failing aftercooler is a noticeable reduction in engine power and acceleration, often accompanied by increased exhaust smoke. If the leak worsens, the engine may run rough, and the exhaust gas temperature can rise significantly. The ultimate consequence is reduced engine performance, increased fuel consumption, and potential damage to engine components due to excessive heat.

Installation Tip

Ensure all mating surfaces for the gaskets are clean and free of old sealant before installing the new aftercooler. Tighten mounting bolts evenly in a crisscross pattern to ensure a uniform seal and prevent distortion.

Service Note

When replacing the aftercooler, inspect the turbocharger for oil leaks or excessive shaft play, and check all intake and exhaust hoses for cracks or wear.