CATEngine Parts

326-4690 Air Filter Element — Cat C15 C18

This air filter element is essential for preventing dust, dirt, and other airborne debris from entering the engine's combustion chambers. Manufactured to CAT's strict specifications, it provides optimal airflow and superior filtration compared to a dirty or damaged element, safeguarding internal engine components. Operators may notice a decrease in engine power, increased fuel consumption, or black smoke from the exhaust when this air filter becomes restricted.

Air Filter Element – Part No 326-4690 – 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 Element
MaterialPaper, cellulose media
ApplicationEngine air intake system
Service LifeReplace every 500-1000 hrs or as needed
CompatibilityCAT specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Reduced engine power and noticeable increases in fuel consumption are common initial signs of a restricted air filter. If the restriction worsens, the engine may run rough, produce black exhaust smoke, and experience increased internal wear. Neglecting air filter replacement can lead to significant engine damage and costly overhauls.

Installation Tip

Ensure the air filter housing is completely clean and free of debris before installing the new element. Make sure the new filter seats properly and the housing seals tightly to prevent unfiltered air from entering the engine.

Service Note

Inspect the turbocharger and intake manifold for oil or soot buildup when replacing the air filter element.