11" Donaldson/Vortox Cleaner Pre-filter Pair

Extends air filter service intervals. Repels moisture. (We recommend removing or pulling down during heavy rain) No measurable air flow restriction. UV resistant, shatter-proof in freezing...

13" Donaldson/Vortox Cleaner Pre-filter Cover (Pair)

Extends air filter service intervals. Repels moisture. (We recommend removing or pulling down during heavy rain) No measurable air flow restriction. UV resistant, shatter-proof in freezing...

15" Donaldson/Vortox Cleaner Pre-filter Cover (Pair)

Extends air filter service intervals. Repels moisture. (We recommend removing or pulling down during heavy rain) No measurable air flow restriction. UV resistant, shatter-proof in freezing...

1997-2008 Freightliner Century, Columbia or Coronado Cab Pre-filter

Pre-filter includes retainer clip for quick and easy install. Installs under the hood on the passenger side. Protect and extend the life of your expensive air filter with a pre-filter. Our...

1997-2008 Freightliner Century, Columbia or Coronado Intake Pre-filter

Pre-filter includes retainer clip for quick and easy install. Installs on bottom side of the hood towards the windshield. Protect and extend the life of your expensive air filter with a pre-filter. ...

2000 - 2009 International 9200I 9400I Cab Air Intake Pre-filter

Fits snugly into cowl on passenger side and uses 3M sticky tape for installation. Alcohol wipe for prep included. 9 3/16" tall and 4 7/8" wide. Pre-filters are designed to enhance the efficiency of...

2002-Up International Durastar Intake Pre-filter

This pre-filter is designed to mount over the engine air intake found on the drivers side. The grille is removed and the pre-filter is installed. Once in place the grille is placed back into the hood...

2008-2017 Freightliner Cascadia Cab Air Intake Pre-filter

Protects cab air filter from debris and moisture. Mounts over factory cab air intake box. Includes 6 retainer clips for easy installation, air intake box not included. Our pre-filters are designed to...

2008-2017 Freightliner Cascadia Intake Pre-filter Cap

Fits over air cleaner intake with a 13 1/2" diameter. Protect and extend the life of your expensive air filter with a pre-filter. Pre-filters are designed to enhance the efficiency of any performance...

2018 Freightliner Cascadia HVAC Pre-filter

2018 Freightliner Cascadia HVAC pre-filter. Includes quick install retainer clips. Pre-filters are designed to enhance the efficiency of any performance or exposed air filter. The pre-filter is...

Common "Under-the-Hood" Engine Filter Pre-Filter

As seen on Freightliner FLD 120, Kenworth T800, T600. The pre-filter fits the following air filters: ACDelco A1175C,  LUBER FINER LAF3551,  BALDWIN PA2705,  WIX FILTERS 46883,  PUROLATOR A74435, ...

Freightliner Business Class M2 106 trucks 2002-UP Intake Pre-filter

Air intake pre-filter for Freightliner Business Class M2 106 trucks 2002 and up. Installs over factory plastic intake grille(located driver's side). Factory grille measures roughly 20.5" x 6"...