SKU: 38558086096

K&N X-Stream Universal Clamp On Filter Fits 3 in (76 mm) (KNRX-3990-1)

Sale price$95.85 Regular price$106.50
Save 10%

Pay in installments of $26.62 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 5 - Aug 10

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

K&N X-Stream Universal Clamp On Filter Fits 3 in (76 mm) (KNRX-3990-1)KNRX 3990 1 3 X STREAM FILTER 8. 688 in (221 mm) H x 6 in (152 mm) Base OD x 4 in (102 mm) Top OD KNRX 3990 1 Part Number: KNRX 3990 1 K&N XStream Top Universal Air Filters take performance to the next level with the addition of a filter within the filter's top adding more filter area for higher air flow and a longer service interval. The XStream Air Filter provides awesome air flow and outstanding filtration. When racing, in any environment, racers

KNRX-3990-1 - 3 X-STREAM FILTER

8.688 in (221 mm) H x 6 in (152 mm) Base OD x 4 in (102 mm) Top OD - KNRX-3990-1

Part Number: KNRX-3990-1

K&N XStream Top Universal Air Filters take performance to the next level with the addition of a filter within the filter's top adding more filter area for higher air flow and a longer service interval. The XStream Air Filter provides awesome air flow and outstanding filtration. When racing, in any environment, racers need all the protection and airflow they can get. K&N delivers. All K&N universal air filters are constructed with ultra-strong moulded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16 inch (1.5mm) to fit in-between sizes. K&N universal air filters are washable and reusable.

Part KNRX-3990-1 Product Specifications
Product Style: Round Tapered Universal Air Filter
Air Filter Shape: Round Tapered
Base OutsideDiameter: 6 in (152 mm)
Top Outside Diameter: 4 in (102 mm)
Flanges: 1
Flange Inside Diameter: 3 in (76 mm)
Flange Length: 0.938 in (24 mm)
Flange Type: Centered
Height: 8.688 in (221 mm)
Filter Material: Cotton Gauze
Top Style: X-Stream
Top Material/Finish: None
Filter Re-Oiling Amount: 1.5 oz (44 ml)
Footnote 1: 1/4-20 Jack Nut Inserted Into Filter Top

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 38558086096

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 27 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
D
Verified Purchase
Donna Fortenberry
Draper, US
★★★★★ 5
The jacket you'll love forever. . .
Size: X-Large Tall, Color: Vintage Indigo
Absolutely love this jacket! Very well made. Thick material. May not be the summer jacket, but still a great jacket for when it's just a little cool to go w/o something. And, WOW, does it look great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 5, 2026
A
Verified Purchase
anonymous
Birmingham, US
★★★★★ 5
Great Product
Color: Mid Blue Wash, Size: Medium
Great value and looks great!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
A
Verified Purchase
Amazon Customer
Carnegie, US
★★★★★ 5
Good buy
Color: Mid Blue Wash, Size: XX-Large
jacket fits well and good quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026
D
Verified Purchase
D Robinson
Bozeman, US
★★★★★ 4
Fit
Color: Mid Blue Wash, Size: X-Large
Nice fit. Very satisfied.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026
P
Verified Purchase
Pin
Lexington, US
★★★★★ 5
Very nice jacket
Color: Blue Wash, Size: Medium
Solid, warm and cool jacket. Wearing this for one year already. Still good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026

recommand products