This muffler is designed for Yanmar and Volvo excavators (EC55, EC55B, EW55) to reduce exhaust noise and safely channel emissions away from the operator. Manufactured to meet OEM durability and performance specifications, it offers a robust construction that resists corrosion and vibration better than a damaged unit. Operators may notice increased engine noise, a louder exhaust note, or potential exhaust leaks if the muffler is compromised.
Always verify with serial number before ordering.
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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.
The initial symptom of a failing muffler is a significant increase in exhaust noise, often described as a loud roar or popping sound. If left unaddressed, exhaust gases may begin to leak, potentially entering the operator's cabin and creating a hazardous environment. Severe corrosion can lead to the muffler separating from the exhaust system, causing further damage and operational issues.
Ensure all exhaust pipe connections are clean and free of debris before attempting to fit the new muffler. Do not reuse old gaskets or clamps, as they may not provide a proper seal and could lead to leaks.
Inspect the exhaust manifold and any associated heat shields for cracks or damage when replacing the muffler.