CATFilters

273-5711 Crankcase Breather Filter — Cat M313D M315D2

This crankcase breather filter is crucial for venting blow-by gases from the engine crankcase while preventing contaminants from entering. It is manufactured to OEM standards, ensuring effective separation of oil mist from the air, unlike a clogged or damaged filter that can lead to increased crankcase pressure. Operators may notice oil leaks from seals or gaskets, or excessive smoke from the engine breather if this filter is not functioning correctly.

Crankcase Breather Filter – Part No 273-5711 – 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 TypeCrankcase Breather Filter
MaterialPolyurethane foam or synthetic fiber
ApplicationEngine crankcase ventilation system
Service LifeReplace every 1000-2000 operating hours
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early indications of a faulty breather filter include a slight increase in oil consumption or minor oil seepage from seals. If the filter becomes completely blocked, excessive crankcase pressure can build, leading to oil leaks from multiple points and potentially affecting engine performance. The main risk is oil contamination of the air intake system and increased emissions.

Installation Tip

Ensure the breather housing is clean and free of obstructions before installing the new filter. Make sure the filter is seated securely to prevent any gases from bypassing the filtration media.

Service Note

Inspect the engine's air intake system for any signs of oil contamination when replacing the crankcase breather filter.