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  • UNI

UNI Two-Stage Competition Air Filter - NU-4140ST

  • Part #: 304837
  • Manufacturer Part #: NU-4140ST
  • MSRP Price: $36.95
  • Our Price: $34.99
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304837
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Overview of UNI Two-Stage Competition Air Filter - NU-4140ST

  • Uni filters two-stage foam design provides superior filtration while allowing maximum airflow
  • Ultra-Seal Filters have a unique grease groove that allows effective application of sealing grease to tightly bond the filter to the surface of the airbox


Specs

Type Air Filter Element
Units Each
Weight 0.81 lbs

Specs for UNI Two-Stage Competition Air Filter - NU-4140ST

Type Air Filter Element
Units Each
Weight 0.81 lbs

Fitment for UNI Two-Stage Competition Air Filter - NU-4140ST

Part 304837 fits the following machines

See if this part fits your ride

Honda
2013 Honda TRX450ER
2012 Honda TRX450ER
2009 Honda TRX450ER
2008 Honda TRX450ER
2007 Honda TRX450ER
2006 Honda TRX450ER
2012 Honda TRX450R
2009 Honda TRX450R
2008 Honda TRX450R
2007 Honda TRX450R
2006 Honda TRX450R
2006 Honda TRX450R Sportrax Electric

Reviews for UNI Two-Stage Competition Air Filter - NU-4140ST

out of 23 reviews.

23 out of 23 (100%) customers would recommend this to a friend.

5 Stars
19
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Write a Review

nice upgrade!!

March 5, 2013

This was a fine upgrade to my xl 600r. good fit, quality item.

I would recommend this item to a friend.
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My quad can now breath.

October 25, 2012

This filter does a much better job then the stock plus its reusable. Fits perfect and my quad breaths easier. I would recommend.

I would recommend this item to a friend.
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By: from Canada

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Air Filter

July 11, 2012

Filter does not come with the oil that you need to make it work correctly. I wish that was in the product overview. That would save you having to make a second purchase and waiting for it to ship. I wish I would have got a K&N filter instead. I know those come pre-oiled. This product will work well I'm sure, just wish it came with the oil you need to use it. Order the oil to if you buy this filter. Hope this helps the next guy.

I would recommend this item to a friend.
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Product Recommendations
By: from Elk River, MN

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Great Filter

June 14, 2012

well worth the money great fit,easy to install gave my '08 Arctic Cat 700efi 4x4 better response, smoother idle and starts better, out with oem in with uni

I would recommend this item to a friend.
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By: from Kempton,Pa

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May 27, 2012

Good fit, noticed increase in performance. Would recommmend.

I would recommend this item to a friend.
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April 9, 2012

I would recommend this item to a friend.
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June 1, 2011

I would recommend this item to a friend.
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UNI Filter

April 27, 2011

Great product, makes the machine breath easier. Its easy to clean and re-oil. I work in the bush all day and it keeps out all the dust and dirt. All around good OEM replacment.

I would recommend this item to a friend.
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Instructions and Media for UNI Two-Stage Competition Air Filter - NU-4140ST

Video Tech Tip: Cleaning a UNI Filter Removable Cage Instructional Video 3:51
Video Tech Tip: How to Clean an UNI Filter Non-Removable Cage Instructional Video 4:39
Video Tech Tip: How to Oil an Uni Filter Instructional Video 6:40