CATFilters

RE541922 Fuel (Ws) — Cat 843K 310K

This is a water separator fuel filter, essential for protecting the engine's fuel system from water contamination. It effectively removes water and solid particles from the diesel fuel before it reaches the injectors. Operating with a compromised water separator can lead to fuel system corrosion and poor engine performance. Operators may experience engine misfires, rough idling, or a loss of power if water enters the fuel system.

Fuel (Ws) – Part No RE541922 – 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 TypeFuel Water Separator Filter
MaterialCellulose media with water-repellent coating
ApplicationDiesel fuel system
Service LifeReplace every 250-500 hrs or as needed
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

The initial symptom of a failing water separator is often an illuminated water-in-fuel warning light or a slight decrease in engine power. If the separator becomes completely saturated or damaged, water can enter the fuel system, causing rough idling, engine misfires, and potential long-term damage to injectors and the fuel pump. Continued operation risks significant fuel system component failure.

Installation Tip

Always drain any accumulated water from the filter bowl before attempting removal to minimize spillage. Ensure the new filter's sealing gasket is properly lubricated with clean diesel fuel before installation.

Service Note

Inspect the fuel tank for water and sediment, and check the fuel lines for any signs of corrosion when replacing the fuel water separator.