CATFilters

2339856 Water Separator Element — Cat 236B 236B3

This water separator element is designed to remove water and solid contaminants from the fuel system, preventing corrosion and damage to sensitive fuel injection components. It effectively separates water from diesel fuel, ensuring cleaner fuel reaches the engine, which is critical for optimal performance and longevity. Operators may notice engine misfires, rough idling, or a fuel filter warning light when this element becomes saturated or clogged.

Water Separator Element – Part No 2339856 – 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 TypeWater Separator Element
MaterialCoalescing media and cellulose
ApplicationFuel system
Service LifeReplace every 250-500 hrs or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The first indication of a failing water separator element is often an engine performance issue, such as rough idling or hesitation during acceleration, due to water contamination. If left unaddressed, the engine may stall intermittently, and fuel injectors can become damaged by corrosion. Continued operation risks severe damage to the fuel injection pump and injectors, leading to costly repairs.

Installation Tip

Before installing the new element, ensure the separator housing is clean and free of any sediment. Always lubricate the O-ring seal with clean fuel to prevent damage during installation.

Service Note

Inspect the fuel tank for any signs of water contamination or sediment, and consider replacing the primary fuel filter element at the same time.