CATEngine Parts

1335673 Fuel Water Separator Filter — Cat C11 C12

This fuel water separator filter is essential for protecting the engine's fuel system from contaminants and water. It is manufactured to meet strict filtration standards, ensuring clean fuel delivery and preventing damage to sensitive injection components, unlike a clogged or damaged filter. Operators may notice engine misfires, rough idling, reduced engine power, or the illumination of a 'water in fuel' warning light when this filter is nearing the end of its service life.

Fuel Water Separator Filter – Part No 1335673 – CAT Spare Part
Part Specifications
BrandCAT
CategoryEngine Parts
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

Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.

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 and synthetic filter media
ApplicationEngine fuel system
Service LifeReplace every 500 hrs or annually
CompatibilityOEM specification
ConditionNew — OEM specification aftermarket

Failure Symptoms

Early signs of a clogged fuel water separator include intermittent engine sputtering or a slight loss of power, especially under load. If neglected, the filter will become completely saturated, leading to water entering the fuel injection system and causing severe engine performance issues. The ultimate consequence is potential damage to fuel injectors and the injection pump, resulting in costly repairs and significant downtime.

Installation Tip

Ensure the area around the filter housing is clean before removal to prevent debris from entering the fuel system. Prime the new filter with clean fuel before installation to minimize air in the system.

Service Note

Inspect the fuel lines and tank for any signs of water or contamination when replacing the fuel water separator filter.