CATExhaust & Turbo

7N0808 Muffler Group — Cat 916 920

This muffler group is designed to reduce exhaust noise and direct exhaust gases away from the operator and equipment. Manufactured to meet high standards, it offers improved durability and noise suppression compared to a corroded or damaged original muffler. Operators may notice a significant increase in exhaust noise, a rattling sound from the exhaust system, or a decrease in engine performance if this part fails.

Muffler Group – Part No 7N0808 – CAT Spare Part
Part Specifications
BrandCAT
CategoryExhaust & Turbo
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

Allow turbo to idle 2–3 minutes before shutdown — this circulates oil through bearings and prevents coking. Check oil feed and drain lines for blockages before fitting new turbo. Replace oil and filter when fitting new turbo — old oil contains metal particles.

Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.

Part TypeMuffler Group
MaterialHeavy-gauge steel with corrosion-resistant coating
ApplicationExhaust system
Service LifeReplace as needed based on inspection or symptoms
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

An audible increase in exhaust noise is the most common initial symptom of a failing muffler group. If ignored, the noise will become more pronounced, and exhaust leaks may develop, potentially exposing the operator to harmful gases. Severe corrosion or rupture can lead to a significant loss of backpressure, impacting engine efficiency.

Installation Tip

Ensure all mounting brackets and hangers are in good condition before attaching the new muffler group. Avoid applying excessive force when connecting exhaust pipes, as this can damage the muffler inlet or outlet.

Service Note

Inspect exhaust pipes, clamps, and hangers for signs of rust, cracks, or looseness when replacing the muffler group.