CATEngine Parts

348-6738 Muffler Hose — Cat 3044C 246C

This is a flexible exhaust connector designed to join the engine's exhaust manifold to the muffler system. It is constructed from durable, heat-resistant materials to withstand high temperatures and vibrations, ensuring a leak-free seal that a worn or cracked hose cannot provide. Operators may notice increased exhaust noise or a persistent smell of exhaust fumes inside the cabin when this hose fails.

Muffler Hose – Part No 348-6738 – 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 TypeMuffler Hose / Exhaust Connector
MaterialHeat-resistant rubber and braided steel
ApplicationExhaust system connection
Service LifeReplace every 3,000 hrs or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A failing muffler hose will first present as an audible increase in exhaust noise, often a louder rumble or popping sound. If left unaddressed, the leak will worsen, potentially leading to exhaust gas recirculation into the operator's station. Continued operation with a significant exhaust leak can expose the operator to harmful fumes and reduce engine performance.

Installation Tip

Ensure the mating surfaces on the exhaust manifold and muffler are clean and free of rust or debris before attempting installation. Do not overtighten the clamps, as this can damage the hose or the connection points.

Service Note

Inspect the exhaust manifold and muffler for any signs of corrosion or damage, and check the condition of any associated clamps or brackets.