Caterpillar 233-9856 2339856 Fuel Water Separator

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  • Product Sku: 233-9856-1Pack
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Standard Efficiency Fuel Water Separator

Cat Standard Efficiency Fuel Water Separators are designed to eliminate 100% free water and 90% emulsified water, along with smaller contaminates, while also helping extend the life of your fuel filter and fuel injectors.

Designed and built specifically for Cat equipment, our fuel water separators extend the life of your secondary filter and precision fuel system components.

Choosing genuine Cat filters is the best choice for protecting your Cat equipment.


  • Designed by Caterpillar to be an integrated component of your critical fuel system
  • Only available from Caterpillar
  • No one knows Cat Fuel Systems better than Caterpillar
  • Cat Filters perform better than will-fitters - see the test results


Efficiency Rating: Standard Efficiency


Wheel-Type Loader
906 906H 907H 908 908H

Skid Steer Loader
242B3 236B 236B3 246B 246C 248B 252B 252B3 256C 257B3 259B3 262B 262C 267B 268B 272C 277B 277C 279C 287B 287C 289C 297C 299C

Engine - Industrial
3044C C3.4

Mini Hydraulic Excavator
303.5D 303.5C 303C CR 304C CR 304D CR 305.5D 305.5E 305C CR 305D CR 306E 306E2 307D 307E 307E2 308D 308E 308E2

* All fitment filter part numbers are based on your engine serial number.
* Please confirm with our team if you are unsure this filter will fit your engine.