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Part number: RX-4140
Universal product
Product Details
K&N RX-4140 Universal X-Stream Clamp-on
Products specifications
Air Cleaner Top Style X-Stream
Air Filter Bottom Measurement 4.000 in. diameter
Air Filter Shape Round
Air Filter Style Conical
Air Filter Top Measurement 4.000 in. diameter
Filter Color Red
Filter Material Cotton gauze
Filter Re-Oiling Amount 0.54 oz (16 ml)
Flange Angle 0 degrees
Flange Diameter 3.5in(89mm)
Flange Inside Diameter 3.531 in (90 mm)
Flange Length 0.75in(19mm)
Flange Offset 0in(0mm)in
Flange Type Centered
Flanges 1
Footnote 1 Base Has 25/64" Vent
Height 5.969 in (152 mm)
Inlet Flange Inside Diameter (in) 3.500 in.
Length 5.75in(146mm)
Length (in) 5.750 in.
Notes With x-stream top.
Outside Diameter 4in(102mm)
Package Contents 1 Air Filter
Package Quantity 1
Product Style Round Straight Universal Air Filter
Quantity Sold individually.
Top Material/Finish None
Weight 0.9 lb (0.4 kg)

K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications. Regardless of the angle or offset diameter of the air intake, there is probably a K&N Universal air filter for your equipment. All filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16" (1.5mm) to fit in-between sizes. K&N universal air filters are washable and reusable.

  • 10 Year / Million Mile Limited Warranty
  • More Air Flow = Increased Horsepower
  • Central Mounting Hole Allows Easy Attachment To Support Bracket.
  • Replaces RX-5031
  • 3-1/2"Flg, 4"Od, X-Stream Clamp-On
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Thank you foryou fast service, and knowledge.  I will definitely be shopping again for my automotive supply needs.
I found parts for my car from google shopping and wanted to verify that everything was correct before order. I call the phone number and somebody picked right up and checked on everything for me. A++ seller. Thanks Autoplicity!
Best price I found on a web..was in stock and received on time within the week..
very prompt service,items were in stock and shipped next day,salesman was helpful and friendly.Will place in favorites and do buisness with again.
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