CATEngine Parts

178-6557 Turbocharger Out Hose — Cat 320C

This is a robust Turbocharger Out Hose designed to connect the turbocharger to the engine's intake system on CAT 3066 engines and 320C excavators. It is constructed from high-temperature resistant materials to withstand exhaust gases and pressure, unlike a cracked or collapsed hose that can lead to performance loss. Operators may observe a significant decrease in engine power, excessive black smoke from the exhaust, or a whining noise from the turbocharger when this hose fails.

Turbocharger Out Hose – Part No 178-6557 – 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 TypeTurbocharger Outlet Hose
MaterialReinforced silicone or rubber composite
ApplicationTurbocharger to intake manifold connection
Service LifeReplace every 3,000 hours or upon inspection
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A leaking or damaged turbocharger out hose will result in a loss of boost pressure, causing the engine to run sluggishly and produce excessive black smoke. If left unaddressed, this can lead to increased fuel consumption and potential turbocharger damage due to inefficient operation. The engine may also exhibit a noticeable drop in overall power output.

Installation Tip

Ensure both ends of the hose are clean and free of oil or debris before installation to ensure a proper seal. Do not use excessive force when connecting the hose, as this can damage the fittings or the hose itself.

Service Note

Check the turbocharger compressor wheel for damage and inspect the intake manifold gaskets for leaks when replacing this hose.