CATFilters

8N6309 Filter Element As-Air — Cat 374D L

This is an air filter element designed to remove particulate contaminants from intake air before it enters the engine. It is constructed from high-quality cellulose media to ensure efficient filtration and prevent premature engine wear. A clogged or damaged air filter can lead to reduced engine power, increased fuel consumption, and black smoke from the exhaust.

Filter Element As-Air – Part No 8N6309 – 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
MaterialCellulose media with rubber seals
ApplicationEngine air intake system
Service LifeReplace every 500-1000 hrs or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Reduced engine performance and noticeable power loss are the first signs of a clogged air filter. Continued operation with a restricted filter will lead to increased fuel consumption and potential engine damage from excessive soot buildup. Ignoring a severely clogged air filter can result in engine misfires and reduced overall efficiency.

Installation Tip

Ensure the filter housing is clean before installing the new element to prevent any bypass of unfiltered air. Do not overtighten the housing clamps, as this can deform the seal and cause leaks.

Service Note

Inspect the pre-cleaner and the air intake piping for any signs of damage or leaks when replacing the air filter element.