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DAVCO® Fuel Pro® Fuel Processors

Donaldson offers a full line of cartridge replacements for DAVCO® Fuel Pro® 380/382 and 482/483 EleMax® Fuel Processors, commonly used as primary fuel filter water separators on many of today’s trucks. These filters provide reliable performance with the convenient maintenance features you need. 


  • Popular on-road trucks with DAVCO® Fuel Pro® 380/382 and 482/483 EleMax® Fuel Processors


  • High efficiency, robust Synteq media – for fine particulate removal and longer filter life
  • Easy maintenance – fuel level visually indicates when filter life has peaked


  • Available in standard and plus sizes
  • Reliable performance – pressure relief valve allows fuel to rise slowly
  • Compatible with existing electronic filter life indication
DAVCO® , Fuel Pro® and EleMax® are registered trademarks of DAVCO Technology, LLC.
This servicing information is provided as a best practices guide. It is not intended to replace or supersede the service instructions supplied by your engine or equipment manufacturer.

Davco®-Type Cartridge

1.    Remove vent cap and seal.

2.    Drain fuel.

3.    Remove collar, cover and seal.

4.    Remove cartridge and old grommet.
       Properly dispose of the used filter according to local regulations.

5.    Clean collar, cover and threads.

6.    Check new grommet and install cartridge.

7.    Install seal, cover and hand-tighten collar.

8.    Fill cover with fuel.

9.    Fit new vent seal and cap and hand-tighten.

10.   Start and warm up engine; increase RPM for one minute.

11.   Slowly open vent cap until fuel rises 25mm / 1 in. above collar; close vent.

Davco is a registered trademark of Davco Technology, Inc.

Donaldson Fuel Filter Servicing

Donaldson provides best practices and recommended steps for fuel filter servicing. Effective fuel filter maintenance is the key to optimal engine performance.