CATEngine Parts

112-3249 Muffler — Cat 3306

This is a CAT Muffler, an essential part of the engine's exhaust system designed to reduce noise and direct exhaust gases away from the operator and engine compartment. It is built to OEM standards for effective silencing and corrosion resistance, unlike a rusted-out or perforated muffler that allows excessive noise and potential exhaust leaks. Operators may notice a significant increase in exhaust noise, a rattling sound, or exhaust fumes entering the cab if the muffler is failing.

Muffler – Part No 112-3249 – 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
MaterialSteel (often aluminized)
ApplicationEngine exhaust system
Service LifeReplace as needed based on corrosion or damage
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The primary symptom of a failing muffler is a sudden and dramatic increase in exhaust noise, often described as a loud roar or backfire. Operators may also notice a rattling sound from internal baffles breaking loose or exhaust fumes escaping from cracks or holes. If left unaddressed, exhaust leaks can allow toxic gases into the operator's cab, creating a health hazard and potentially damaging surrounding components.

Installation Tip

Ensure all exhaust pipe connections are clean and free of rust or carbon buildup before installing the new muffler. Do not overtighten clamps, as this can crush the muffler inlet or outlet pipes, leading to leaks.

Service Note

Inspect the entire exhaust system, including pipes, hangers, and clamps, for rust, cracks, or leaks when replacing the muffler.