CATFilters

1131578 Filter Element As-Air — Cat 789

This is a replacement air filter element for specific CAT engine applications, designed to capture airborne contaminants before they enter the engine. It is constructed with high-quality pleated media to ensure efficient filtration and maintain optimal airflow, preventing premature wear on internal engine components. Observable symptoms of a failed or clogged air filter include a significant loss of engine power, increased black exhaust smoke, and rough idling.

Filter Element As-Air – Part No 1131578 – 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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Parts Trading Company  ·  Mumbai, Est. 1956  ·  Same-day dispatch  ·  Ships worldwide  ·  GST invoice included

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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
MaterialPaper media, rubber gaskets
ApplicationEngine intake system
Service LifeReplace every 1,500 hrs or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

A restricted air filter will first lead to reduced engine power and increased fuel consumption. If ignored, it can cause the engine to run rich, leading to black smoke and potential oil dilution. Severe restriction can result in premature wear of piston rings and cylinder liners.

Installation Tip

Ensure the air cleaner housing is thoroughly cleaned before installing the new element to prevent any dirt from entering the intake. Do not operate the equipment without the air filter element installed.

Service Note

Inspect the air intake piping and turbocharger for any signs of damage or leaks that could compromise air filtration.