CATFilters

4T3131 Excavators & Construction Equipment — Cat 120G 120H

This component acts as a vital filter, typically within the engine's air intake or hydraulic system, to prevent airborne or fluidborne contaminants from entering and damaging sensitive machinery. It is constructed to meet high-performance specifications, offering superior filtration efficiency compared to a worn or damaged filter that allows debris to pass through. Operators may observe a loss of engine power, increased exhaust emissions, or erratic hydraulic system operation when this filter begins to fail.

Excavators & Construction Equipment – Part No 4T3131 – 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 TypeFilter Element
MaterialPaper and rubber
ApplicationAir intake or hydraulic system
Service LifeReplace every 1,000 hrs or annually
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early signs of a failing filter may include a gradual decrease in engine power or an increase in fuel consumption. If the filter becomes excessively clogged, it can lead to engine misfires or overheating. Continued operation with a blocked filter risks severe internal engine damage due to insufficient airflow or contamination.

Installation Tip

Before installing the new filter, thoroughly clean the filter housing and surrounding area to prevent any dirt from entering the system. Ensure the filter is seated correctly and the seals are properly aligned to prevent air or fluid leaks.

Service Note

When replacing this filter, inspect the air intake system for leaks or damage, and check the turbocharger for any signs of wear.