Caterpillar 326-1641 3261641 FUEL WATER SEPARATOR Advanced High Efficiency

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Advanced Efficiency Fuel Water Separator

Cat® Advanced Efficiency Fuel Water Separators are designed to eliminate virtually all free water and 90% emulsified water along with smaller contaminates while helping extend the life of your fuel filter and sophisticated fuel injectors.

Injector erosion causes loss of power and increased fuel burn, which is why it's critical to protect your injectors by choosing longer-lasting Cat Fuel Water Separators. Manufactured in our own facilities, we control the quality of the parts you need to keep your equipment performing at optimum levels.

This results in more uptime and lower repair costs for your business.


  • Unique filter media provides unsurpassed protection.
  • Acrylic beads prevent bunching
  • Spiral roving provides greater pleat stability and maximum dirt holding capability
  • Nylon center tube prevents metal contamination
  • Molded end caps prevent leaks

SPECIFICATIONS Efficiency Rating: Advanced Efficiency

Engineer Support Tractor

Forest Products

XQP500 SR500

Wheeled Excavator
W345C MH

Engine - Generator Set
C13 C32 3412 C15 C18 C18 I6 C27 C13GENSET C15 I6 3412C

Engine - Truck
C-15 C7 C15 C13 C-9 C-12 C9 C-16

Petroleum Products
CX35-P800 C27 TH48-E70 TH35-C13I CX31-C11I TH35-C13T C15 C32 TH35-C15T TH31-E61 TH35-E81 CX31-C13I TH35-C11I CX31-P600 TH31-C9T C18

345C 385C L 345D L 365C 349D2 L 345C MH 345C L 385C 365C L 365C L MH 345D 385C L MH 349D L 349D 385C FS 349D2

Engine - Industrial
C13 C11 C27 C32

Marine Products

Wheel Tractor-Scraper
631E 637E

Load, Haul, Dump