K&N Washable Lifetime Performance Air Filters E-3978XD

K&N XD air filters use a Deep Pile Design, Extra Fine Weave Grade Cotton and alternate geometries for added efficiency and capacity for off-road conditions. This extra thick filtering medium provides the increased protection demanded by high dust conditions while continuing to provide the performance necessary to stay in the front of the pack. The XD Cotton medium was developed for the extreme conditions encountered by race teams in the Baja 1000. This real world testing is combined with testing performed at K&N's own Dust Retention Laboratory in conformity with the ISO 5011 test protocol. XD Cotton Air filters can be cleaned in the same way as K&N's original cotton air filters.

•Outstanding protection in harsh dusty conditions
•Washable and reusable
•Long service life
•Low restrictionBrand: K&N
Manufacturer's Part Number: E-3978XD
Part Type: Air Filter Elements
Product Line: K&N Washable Lifetime Performance Air Filters
HP Direct Part Number: KNN-E-3978XD
UPC: 024844255471
Air Filter Type: Oiled
Air Filter Style: Round
Air Filter Outside Diameter (in.): 14.10
Air Filter Height (in.): 5.00
Air Filter Inside Diameter (in.): 11.50
Filter Material: Cotton gauze
Filter Color: Red
Quantity: Sold individually.