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Part number: RX-4020-1
Product Details
K&N RX-4020-1 Universal X-Stream Clamp-on
Products specifications
Air Cleaner Base Black rubber
Air Cleaner Filter Red cotton gauze
Air Cleaner Shape Round tapered
Air Cleaner Size 4 1/4 in. diameter
Air Cleaner Top Design K&N logo
Air Cleaner Top Finish Black/Red hard plastic
Air Cleaner Top Material Plastic
Air Cleaner Top Style X-Stream
Air Filter Shape Round Tapered
Base OD 4.25in(108mm)
Base Outside Diameter 4.25 in (108 mm)
Filter Height (in) 4.750 in.
Filter Material Cotton gauze
Filter Re-Oiling Amount 0.63 oz (19 ml)
Flange Angle 0 degrees
Flange Diameter 2.875in(73mm)
Flange Inside Diameter 2.875 in (73 mm)
Flange Length 0.938in(24mm)
Flange Offset 0in(0mm)in
Flange Type Centered
Flanges 1
Footnote 1 1/4-20 Jack Nut Inserted Into Filter Top
Height 4.75 in (121 mm)
Length 4.75in(121mm)
Package Contents 1 Air Filter
Package Quantity 1
Product Style Round Tapered Universal Air Filter
Quantity Sold as a kit.
Top Material/Finish None
Top OD 4in(102mm)
Top Outside Diameter 4 in (102 mm)
Wing Nut Included No
Air Filter Large End Diameter 4.25 in (108 mm)
Weight 0.9 lb (0.4 kg)
  • Designed For Serious Racers
  • Enhances Performance
  • Pulls More Air Through
  • Best Filtration Available
  • More Protection And Airflow
  • Universal Clamp-On Filter
Add your review
I just received my order, I was expecting it on Saturday so that was a nice surprise. I will have to install it in my car and then finish my comments. Then I will let you know the rest of the story. Thank you.
First time ordering. so far so good. thank you :)
Best price anywhere for a brand name item. Fast inexpensive shipping!
Best prices on the internet and fast at getting the product out. Thanks!
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