No Maintenance - One Time Use.
Pre-Filter # 51920 - Extend the life of your filter and add extra protection.
By using Donaldsons PowerCore Filtration technology submicron contaminants load on the surface rather than collecting in the depth of the filter. This boosts efficiency and increases performance on your aftermarket air intake system. The filter media wont deteriorate as easily as traditional cotton/gauze filters. This is why we warranty our replacement air filters for 4 years or 150,000 miles in urban conditions whichever comes first.
Replacement filter for air intakes:
Ford Bronco 2021+ 2.3L / 2.7L (Part # 170026, 170036)
2004-2005 Ford F-150 4.6L (Part # 19746, 3985462)
PowerCore Element Part #: 6128701 (No Flange - Used in other replacement filters)
the filter was not useable. it created a lean condition