Shipping Estimate
USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
K&N Round Air Filter (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.
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
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 286 reviews
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Product Reviews
★★★★★ 5
Non-greasy, great natural sunscreen
Size: 3 Ounce (Pack of 1)
This sunscreen isn’t greasy and absorbs into the skin well. Application is great. Really love that it’s all natural ingredients!
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Reviewed in the United States on June 5, 2026
★★★★★ 4
Frequently apply
Size: 3 Ounce (Pack of 1)
It's good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
★★★★★ 5
Great sunscreen!
Size: 3 Ounce (Pack of 1)
This sunscreen is fantastic. Exactly what it says, no white cast, not greasy and leaves your skin feeling great! Would totally recommend this product!
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Reviewed in the United States on May 23, 2026
★★★★★ 5
non-greasy, lightweight, and absorbs quickly, making it ideal for daily use on both face and body
Size: 3 Ounce (Pack of 1)
Made with beef tallow and zinc oxide, free from harsh chemicals and artificial fragrances
Hydrates and nourishes skin, perfect for dry or sensitive skin
Non-toxic and environmentally friendly, safe for ocean life
Stays put during activities, up to 80 minutes
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Reviewed in the United States on April 5, 2026
★★★★★ 5
Effective Sun Protection with Natural Ingredients.
Size: 3 Ounce (Pack of 1)
This sunscreen combines beef tallow and zinc oxide to offer reliable protection against the sun. The texture is lightweight and absorbs well, leaving the skin feeling comfortable without a heavy sensation. It works for both the face and body and holds up well against water exposure. It is a practical choice for those seeking a sunscreen with a more natural formula.
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Reviewed in the United States on April 12, 2026
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