CATEngine Parts

327-6618 Cabin Air Filter — Cat 308D 311D

This cabin air filter is designed to remove dust, pollen, and other airborne contaminants from the air entering the operator's cab. Manufactured to precise specifications, it ensures optimal airflow and filtration efficiency, unlike a clogged or damaged filter which restricts air and allows contaminants through. Operators may experience reduced HVAC performance, unpleasant odors, or increased dust levels inside the cabin when this filter is no longer effective.

Cabin Air Filter – Part No 327-6618 – 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 TypeCabin Air Filter
MaterialHigh-efficiency filter media
ApplicationHVAC system air intake
Service LifeReplace every 500-1000 hours or annually
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first sign of a clogged cabin air filter is a noticeable reduction in airflow from the HVAC vents. If ignored, this can lead to the HVAC system working harder, potentially causing overheating, and allowing unpleasant odors or fine dust particles into the cab. Eventually, the system's effectiveness will be severely compromised, impacting operator comfort and air quality.

Installation Tip

Locate the filter housing, typically behind the cab or under the dashboard, and note the airflow direction arrow on the old filter before removal. Ensure the new filter is seated correctly and the housing cover is securely fastened.

Service Note

While replacing the cabin air filter, inspect the HVAC system for any signs of mold or mildew and clean the evaporator core if necessary.