Fleetguard FS20121 Fuel/Water Separator Filter Head Assembly, Pack of 6

Cummins Inc.
8 in. L x 4 in. Dia.
Product Type:
Particulates and Water
Micron Rating:
10 Micron
Pack of 6
7.00 LBS
WARNING: This product may contain a chemical known to the State of California to cause cancer & reproductive harm. For more information, go to www.P65Warnings.ca.gov.
Adding to cart… The item has been added

The Fleetguard FS20121 fuel water separator spin-on filter works to remove water and particulates to ensure clean fuel is delivered to your engine. The filter is constructed of durable materials and has a high-efficiency element to help the fuel system remains free of water and other particles.


  • High performance fuel filtration
  • Extend maintenance intervals up to 1000 hours
  • Lower operating expenses
  • Minimize maintenance costs and maximize uptime
  • Advanced water removal and fuel-water separation meets high-efficiency specifications to protect your entire fuel injection system
  • Metal housing makes the filter environmentally friendly
  • Use with Bio-diesel and Ultra low sulfur Diesel compatible
  • Removes entrained water and emulsified water


  • Filter Type: Fuel/water separator
  • Filter Media: StrataPore
  • Diesel filter
  • Spin-on filter
  • 10 Micron rating
  • Largest OD: 8 in.
  • Length/Height: 4 in.
  • 95% emulsified water and free water separation


  • Freightliner B6.7 and L9 engines
  • International B6.7 and L9 engines
  • Peterbilt-365 L9 engines
  • Kenworth L9 engines
  • Mack B6.7 and L9 engines
  • Blue Bird B6.7 and L9 engines
  • Western Star L9 engines
  • Integrated Coach B6.7 and L9
  • Autocar B6.7 and L9 engines
  • Hino B6.7 and L9 engines
  • Van Hool L9
  • Thomas B6.7 and L9 engines

FS20121 Cross Reference

  • Treberg T13017490
  • Cummins 5444245 and 5528103