CATEngine Parts

1421339 Air Filter — Cat C11 330D

This is an air filter for Caterpillar engines, crucial for removing contaminants from intake air before it enters the combustion chamber. It is manufactured to meet stringent OEM quality standards, providing superior filtration efficiency and airflow compared to a clogged or damaged filter. Operators may notice reduced engine power, increased fuel consumption, or black smoke from the exhaust if this filter is compromised.

Air Filter – Part No 1421339 – 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 TypeAir Filter
MaterialCellulose and synthetic media
ApplicationEngine intake air filtration
Service LifeReplace every 500 hrs or as indicated by restriction indicator
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A clogged air filter will initially manifest as a gradual decrease in engine power and potentially increased black smoke during acceleration. If the filter becomes severely restricted, the engine may struggle to reach full throttle, leading to reduced productivity and higher fuel consumption. Continued operation with a blocked filter can cause excessive soot buildup in the engine and exhaust system.

Installation Tip

Ensure the air filter housing seals are clean and intact to prevent unfiltered air from entering the engine. Do not operate the engine with the air filter removed, even for a short period.

Service Note

Inspect the air intake system, including hoses and clamps, for leaks or damage when replacing the air filter.