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Donaldson Filters

We hold ourselves to a higher standard. All of our fuel filters help prevent premature injector and pump wear by delivering cleaner fuel to your engines. Our fuel filters meet or exceed your application requirements.

Applications

  • We offer a full range of fuel filters for popular heavy-duty on- and off-road engines
  • We have assembly and filter systems that you can build into – or add onto – your equipment. We also offer a broad range of replacement filter coverage to fit systems built by other manufacturers
  • We offer filter options to fit all of the common primary and secondary systems used on equipment today – including spin-ons, fuel-filter-water-separators, DAVCO-type cartridges and metal or metal-free cartridges

Benefits

  • Cost effective fuel filtration doesn't mean having to cut corners
  • We sweat the little things (so you don't have to.) We use top quality components to make top quality filters – whether premium or standard

Features

  • Heavy-duty components – like baffle plates, seams, can housings, liners and springs – all contribute to creating filters that are built to last and built to perform

Available Media Types

  • Cellulose – Engine fuel media is most commonly a pleated cellulose base material. It's a cost effective media that effectively meets application efficiency and capacity requirements.

  • Treated cellulose (for fuel-filter-water-separators FFWS) – Treating cellulose with a silicone based material allows for effective water separation. Typically, this media is used on the suction side of the fuel system to remove harmful water and coarse particulate contaminant.

  • Our Exclusive Synteq® for use in FFWS – uses both cellulose and a meltblown synthetic layer to achieve higher levels of fuel filtration performance. This double-layer media increases particulate holding capacity (longer filter life) and is a high-performance water separator. It offers high efficiency emulsified water separation and can be used on both the suction and pressure sides of fuel systems.
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.

Spin-On Filters 

  1. Unscrew and remove the old filter and gasket.
    Properly dispose of the used filter according to local regulations.

  2. Wipe filter head with a clean cloth

  3. DO NOT pre-fill with fuel unless otherwise specified

  4. Apply a thin film of clean motor oil to the gasket

  5. Align threads; spin filter on until gasket contact

  6. Follow icons on filter to tighten to tighten the appropriate amount

  7. Start engine and check for leaks

Spin-on Fuel Filter Water Separator (FFWS)

  1. Disconnect Water-In-Fuel (WIF) sensor if present – reconnect after servicing

  2. Unscrew and remove the old filter and gasket.
    Properly dispose of the used filter according to local regulations.

  3. Wipe filter head with a clean cloth

  4. Fill with fuel on the dirty side of the filter – per engine manufacturer recommendations

  5. Apply a thin film of clean motor oil to the gasket

  6. Align threads; spin filter on until gasket contact

  7. Follow icons on filter to tighten to tighten the appropriate amount

  8. Replace water collection bowl gasket if applicable

  9. Prime fuel system per manufacturer instructions

  10. Start engine and check for leaks

  11. Drain water daily
     

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 1 inch/25mm above collar; close vent

 


Davco is a registered trademark of Davco Technology, Inc.

 


Metal-Free Cartridge

  1. Loosen cap slowly; fuel will drain from housing

  2. Remove cap, cartridge and gasket (if present)

  3. Remove cartridge and old O-Ring from cap
    Properly dispose of the used filter according to local regulations.

  4. Clean cap and housing with a clean cloth

  5. Fit new O-ring and cartridge into cap

  6. Install new gasket (if needed); install cap with cartridges

  7. Tighten cap to proper torque

  8. Prime fuel system per manufacturer instructions

  9. Start engine and check for leaks

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.