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Not seeing what you're looking for?  We have around 150,000 applications from shop vacuum pre-filters to combine engine pre-filters.  Click here and let us know what you're looking for!

Semi Truck Pre-filters

FAFP155200 $39.95 / Pair
15 inch external cleaner pre-filter pair - Fits Donaldson, Vortox and standard 15" cans.
FAFP135200 $39.95 / Pair
13 inch external cleaner pre-filter pair - Fits Donaldson, Vortox and standard 13" cans.

FAFP114200 $39.95 / Pair
11 inch external cleaner pre-filter pair.  Common on International Trucks.  Available in standard black only.

For Peterbilt trucks

Air intake pre-filter pair for Peterbilt 579 trucks. Mounts over factory plastic intake grilles.  Grilles not included.

FAFP101486 - $29.95
Peterbilt Model 379, 378, 377, 386, 389, 388 Fresh Air Filter Pre-filter.

FAFP386002 $39.95
Peterbilt 386 Intake Pre-filter Pair.  Held in place with retaining clips (included).  No drilling or grille removal required. 

For Kenworth Trucks

FAFP092812 $29.95
Kenworth Model T800, W800, W900, W900L 1986-2010 Fresh Air Filter Pre-filter
FAFT660000 - $47.95
Kenworth T660 2007-2015 Factory Intake Grille Pre-filter Pair - Intake Grilles Not Included

Intake pre-filter pair for Kenworth T880 trucks.  Does not include plastic grilles.

For Freightliner trucks

FAFP122813 - $29.95
Freightliner FLD 120 & Classic 1988-UP Cab Filter pre-filter.

FAFP081383 - $119.95
Air intake grille pre-filter pair for Freightliner Coronado trucks2010- current.  Mounts over factory chrome intake grilles.  Grilles not included.

FAFP031089 $35.95
Air intake pre-filter for Freightliner Business Class M2 106 Trucks.   Installs over factory plastic intake grille(located driver's side).  Factory grille measures roughly 20.5" x 6".  Grille not included.
FAFP093086 - $55.95
Freightliner Cascadia air cleaner pre-filter cap.  For 13 1/2" diameter intake.

For International trucks

For Mack trucks

FAFP061362 - $74.95
Air intake pre-filter pair for International Workstar 7300-7800 trucks.  Mounts over factory plastic intake grilles.  Grilles not included. 

FAFP061408 - $49.95
Air intake pre-filter for short hood International Workstar trucks.  Mounts over factory intake grille.  Grille not included.

FAFP100616 - $53.95
Air intake pre-filter pair for Mack CH / CL trucks.  Mounts over factory plastic intake grilles that measure ~17.5" wide.  Grilles not included.

For Volvo trucks

FAFP032715 - $27.95
Volvo VNL Series cabin air filter intake grille pre-filter.  Fits under the hood on the passenger side.  2003-Present.

Tester wanted.  Please email or call 402-454-6681

FAFP606720 $69.95
Common Volvo engine filter pre-filter.  Fits over:

Fits multiple truck makes

FAFP153551 - $57.95
Freightliner, Kenworth, Peterbilt, and Western Star Truck Pre-filter using one of the following air filters:
FAFP527682 - $57.95
Freightliner, Navistar, Sterling and Western Star Truck Air Filter Pre-filter using one of the following air filters: 

Back to all pre-filters

FreedomAirFilters.com Pre-filters are designed to enhance the efficiency of any performance or exposed air filter. The Pre-filter is constructed with a proprietary polyester mesh with uniform micron openings, treated with a hydrophobic water-repellent process. The mesh is UV resistant, filters debris down to .005, is shatter proof in freezing temperatures, and resistant to heat up to 450 degrees. The material is puncture resistant and has elasticity characteristics allowing the threads to return to the original position in the event the threads have been impacted or shifted. The manufacturing process incorporates a welded seam for strength, or reinforced industrial grade thread to fill needle holes and to reduce potential failure points in the material. The top seam utilizes specialized thread and cording to reinforce durability of the top. Pre-filters are designed to deflect the damaging debris, which clogs air filters, compromising peak air-flow and horsepower. The Pre-filter also extends the time between servicing intervals reducing costs and increasing convenience for the consumer.