E-3977XD Image

Replacement Filters > Custom Air Filter

List Price: $164.73
Your Price: $95.99

You Save 41.7%


In Stock & Ready to Ship!
  Free Ground Shipping!

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 restriction

Product Specifications

Air Filter Shape:Round
Filter Material:Cotton Gauze
Filter Re-Oiling Amount:8.04 oz (238 ml)
Height:4 in (102 mm)
Inner Wire:No
Inside Diameter:13 in (330 mm)
Outside Diameter:16 in (406 mm)
Package Contents:1 Air Filter
Package Quantity:1
Part Number:E-3977XD
Product Box Height:6.75 in (171 mm)
Product Box Length:18.38 in (467 mm)
Product Box Width:18.38 in (467 mm)
Product Style:Round Air Filter
Top Material/Finish:None
Top Style:Open
Weight:5.8 lb (2.7 kg)