AFE 21-90058 Pro Dry S BHAF (Big Honkin' Air Filter)


Flange: 4" | B: 8-1/2" | T: 8-1/2" | L: 11"
Manufacturer: AFE
Mfg. Number: 21-90058
XDP Part Number: AFE21-90058

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The AFE 21-90058 Pro Dry S BHAF (Big Honkin' Air Filter) for your diesel pickup is designed as a universal high-flow alternative to the popular paper disposable BHAF (Big Honkin' Air Filter) commonly used in the 94-02 Cummins and many other universal applications. Testing shows that this filter outlflowed the BHAF by up to 19%. Unlike the paper versions these filters are washable and re-usable for multiple cleaning cycles.
Pro DRY S Media:   
This filter features "Oil-Free" 3-Layers Of Progressively Finer Porosity Synthetic Media For Maximum Convenience With Excellent Filtration Efficiency. The progressive layering of media allows the filter to flow at high levels even when dirty. The ProDRY S filter media has been tested at 99.27 percent filtration efficiency.
Massive Washable/Reuseable Filter:
With 8-1/2" Base x 8-1/2" Top x 11" Height with a 4" flange, this filter is a direct replacement for the popular Donaldson paper filter P/N: ECB085011).  Rather than throwing the filter away, you can now wash the filter and reuse it over and over again.  Since this filter is oil-free, servicing no longer requires through drying and re-oiling.

Rounded Open Pleats:
aFe performance air filters use a rounded, evenly spaced pleat design which produces more useable filter surface area for increased flow and greater dust holding capacity. Pleats are 30% taller that the paper alternative.

100% Polyurethane Construction:
To allow multiple cleaning cycles, the top and base are made of 100% pliable polyurethane that does not deteriorate with time or exposure to heat and chemicals.

  • Pro DRY S Oil-Free Media for Maximum Convenience
  • This filter is a direct replacement for the Donaldson ECB085011 paper filter. 
  • 19% increase in Flow (427 CFM at 1.50"" H20) over Donaldson's filter. 
  • 100% Polyurethane top and base for Long Filter Life
  • Flange reinforced with embedded metal ring to prevent seal failure
  • Washable and Reuseable for Multiple Cleaning Cycles
  • 2-Year limited warranty

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afe pro dry
Cole Mellenbruch (missouri) 2/28/2015 11:12 AM
Great air filter with very easy install. The stock tube fits right onto the filter with no trouble. The silencer ring was removed from my truck before I bought it and with this filter you can really hear the turbo.

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