Does anyone know the part number for the AEM dryflow filter that fits the K&N 77 Series intake???????????

 

You can find it, first go to K&N's web site, find your intake and the parts list, do a search on the K&N air filter part #, you'll get the full specs for the filter. Once you get the general measurements, intake ID, filter diameter/length etc, go to AFE and search thier general filter giude to find one that is a close match. I've done this many times, |I usually target a replacement as big as will fit, more surface area, better flow, and extended cleaning intervals.

 

I had a look, your filter

RC-5046 Product Specifications
Product Style: Round Tapered Universal Air Filter
Base Outside Diameter: 7.5 in (191 mm)
Flange Inside Diameter: 6 in (152 mm)
Flange Length: 0.625 in (16 mm)
Flange Type: Centered
Height: 9 in (229 mm)
Top Outside Diameter: 4.5 in (114 mm)

The Aem replacement is not tapered like yours, an 8" long is 21-2100DK, the 9" is 21-2099DK , both will proveide more surface area. Looking at your intake though, I'd swap to something that flows better, haven't seen gains that low on a Ford, according to K&N's website even. Either way, good luck!

 

Thanks hoseclamp. much appreciated. I already had the size, i was just looking for AEM part number, to make shopping around a bit easier. Thanks again