CATFilters

6I2503 Filter Element As-Air — Cat D3G D4G

This is an air filter element designed to prevent dust, dirt, and debris from entering the engine intake system of Caterpillar equipment. It meets stringent filtration standards, ensuring clean air for optimal combustion and engine performance, unlike a torn or clogged filter. Symptoms of a failing air filter include reduced engine power, increased fuel consumption, or black exhaust smoke.

Filter Element As-Air – Part No 6I2503 – CAT Spare Part
Part Specifications
BrandCAT
CategoryFilters
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

Never run an engine without a filter — even briefly causes abrasive damage. Pre-fill fuel filters with clean fuel before fitting to reduce prime time. Replace O-rings on filter housings every second service. Record change dates on filter housing.

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
MaterialPleated cellulose paper
ApplicationEngine air intake system
Service LifeReplace every 500-1000 hours or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A dirty air filter will initially restrict airflow, leading to a noticeable decrease in engine power and potentially increased fuel consumption. If left unaddressed, the engine may run rich, causing black exhaust smoke and premature wear on internal engine components. This can lead to significant performance issues and costly engine repairs.

Installation Tip

Ensure the air filter housing is completely clean and free of debris before installing the new element to prevent contaminants from bypassing the filter. Make sure the element is seated correctly and the housing is securely closed.

Service Note

When replacing the air filter, inspect the intake manifold and turbocharger (if equipped) for any signs of oil or soot buildup.