CATEngine Parts

251-7222 Air Filter Assembly — Cat C18

This air filter assembly is responsible for removing contaminants from the air entering the engine, ensuring clean combustion and protecting internal components. Manufactured to precise standards, it provides superior filtration compared to a clogged or damaged filter element. Operators may notice a significant decrease in engine power, increased exhaust smoke, or rough engine operation when the air filter assembly is compromised.

Air Filter Assembly – Part No 251-7222 – 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 Assembly
MaterialPaper, rubber, metal
ApplicationEngine air intake system
Service LifeReplace every 500-1000 hrs or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A clogged or damaged air filter assembly will first manifest as a gradual loss of engine power and reduced throttle response. If ignored, the engine may begin to run rich, leading to increased fuel consumption and black exhaust smoke. Severe restriction can cause the filter element to collapse, allowing unfiltered air into the engine, leading to rapid internal wear.

Installation Tip

Ensure the sealing surfaces on the engine intake manifold and the filter housing are clean and free of debris before installing the new assembly. Make sure the filter element is seated correctly and the housing is securely fastened.

Service Note

Inspect the intake piping, turbocharger, and crankcase breather system for any signs of restriction or contamination when replacing the air filter assembly.