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Uni Air Filter

Fits Your MachineDisplaying parts for your 2009 KAWASAKI KX250F
Uni Air Filter
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Uni Air Filter

Fits: 2009 KAWASAKI KX250F

Part# 1068790115 | Mfg Part# NU-2399ST

Our Price: $22.99

MSRP: $32.95 - You save $9.96 (30% off)

Get $1.15 in Quick Cash

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How To Oil a Uni Filter

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Details

    The Uni Air Filter is two layers of foam that will trap small and large particles like dust and dirt helping prevent anything reaching to the cylinder. Uni Air Filter is manufactured of high performance foam and biodegradable. The Uni Air Filter has a seamless design that allows for a maximum amount of air flow to your machine. The Uni Air Filter is easy to clean with the Uni Air Filter Cleaning Kit and will help cut the grease and oils down so you are able to reuse indefinitely
  • MULTI-STAGE COMPETITION OFF-ROAD AIR FILTERS.
  • Traps dirt and dust in two layers of foam, the large pore pre-filter captures the bigger particles.
  • The small pore inner filter prevents any engine wrecking grit from reaching the cylinder.

Uni Air Filter Reviews

Rocky Mountain ATV/MC gift card Each review submitted enters you into a
$100 gift card monthly drawing and a
$500 gift card quarterly drawing!
WRITE A REVIEW
4.7 / 5.0
550 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
461
57
13
6
13
Value
4.8 / 5
Longevity
4.8 / 5
Fitment
4.9 / 5
Performance
4.9 / 5
Recommend it?
Yes (203)
No (8)
Value
5 / 5
Longevity
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
UNI D this
Fit great. Easy install and came with a cool sticker, which seems to make the old KLR go a little bit faster
April 16, 2020
Olympia, WA, US
Age: 45-64
Purchased
2 months ago
Gender:
Male
Weight:
221 - 250 lbs.
Height:
6'1 - 6'3
Value
5 / 5
Longevity
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Great filter, always use uni filters!
Awesome upgrade, a lot more air flow. I have nver had a problem yet!
April 5, 2020
Moundsville , WV, US
Purchased
6 months ago
Value
5 / 5
Longevity
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Best air filer on the market!!!
I have it installed on my Recon 250 1998 for on year now and it is in the same shape that when I installed it! Good value for money! I highly recommand it for all type of machine!!

-m-1998 HONDA TRX 250 RECON--
User submitted image
Added Apr 4, 2020
April 4, 2020
Québec, QC, CA
Age: 15-24
Gender:
Male
Weight:
101 - 130 lbs.
Height:
5'7 - 5'9
Value
5 / 5
Longevity
5 / 5
Fitment
5 / 5
Performance
4 / 5
Recommend it?
Yes
Great air filter
Great air filter it is not the best on the market but it’s still a very good air filter
March 30, 2020
Blauvelt , NY, US
Age: 15-24
Purchased
7 months ago
Gender:
Male
Weight:
101 - 130 lbs.
Height:
5'7 - 5'9
Value
5 / 5
Longevity
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Only go quality when it comes to protecting your engine
Perfect fit, I know i can ride in the worst conditions with this filter and not have to worry

-m-2007 YAMAHA YZ250--
March 23, 2020
mt pleasant, PA, US
Age: 25-44
Gender:
Male
Weight:
191 - 220 lbs.
Height:
5'7 - 5'9
Value
5 / 5
Longevity
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Awsome!!
Amazing! The double layer foam gives my cylinder extra protection. Probably adds 20+ hours of use to your piston and rings! Would recommend this product

-m-2006 KTM 85 SX 17/14--
March 23, 2020
North Battleford, SK, CA
Age: 15-24
Purchased
6 months ago
Gender:
Male
Weight:
101 - 130 lbs.
Height:
5'4 - 5'6
Value
5 / 5
Longevity
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Wouldn’t chose any other
Been running UNI air filters on any bike I’ve ever owned, great product and easy to clean. Would Forsure recommend this air filter over any on the market.

-m-2007 YAMAHA YFZ 450--
March 5, 2020
Duarte, CA, US
Age: 25-44
Purchased
3 months ago
Gender:
Male
Weight:
161 - 190 lbs.
Height:
5'7 - 5'9
Value
5 / 5
Longevity
4 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Good
After my old one turn to dust after my first cleaning decided to order this one and it’s worked great so far.. only have cleaned this one once so far so not sure on durability
March 2, 2020
Prescott, AZ, US
Purchased
1 year ago
Value
5 / 5
Longevity
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Quality product
-m-2012 KAWASAKI Teryx4 750-- another quality product I would highly recommend for anyone in the market.
February 7, 2020
Mechanicsville, MD, US
Age: 25-44
Purchased
7 months ago
Gender:
Male
Weight:
251 - 280 lbs.
Height:
6'4 - 6'6
Value
5 / 5
Longevity
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
The Best Filter On Earth
I'm a big believer in clean air filters and UNI makes the most durable and best performing filters on earth. I've used UNI for 10+ years on many different machines and they have never let me down. MADE IN THE USA and these fit both of my brand new 2019 Yamaha Kodiak 450s perfectly. I even carry a spare filter that I pre oil in a ziploc bag just in case. Without doing anything else to the machine I instantly noticed a slight increase in performance and for these 450s that are not performance built machines that is pretty impressive in my opinion.
February 6, 2020
Disputanta, VA, US
Age: 25-44
Purchased
3 months ago
Gender:
Male
Weight:
161 - 190 lbs.
Height:
6'1 - 6'3
Show more
Rocky Mountain ATV/MC gift card Each question or answer submitted enters you into a:
$100 gift card monthly drawing and a
$500 gift card quarterly drawing!
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 39 questions Browse 39 questions and 94 answers
Is it a direct fit or does it need a adapter?
A shopper on Sep 13, 2016
BEST ANSWER: On every bike we have had they have been a direct fit when ordered for that specific model. Most of our bikes are running the stock filter basket except my crf450 which has the aluminum Twin Air filter basket and the Uni ordered for stock application fit perfectly there too.
does the pre-filter need oiled?
A shopper on Feb 28, 2017
BEST ANSWER: If they need oiling the oil comes with it if I'm not mistaken.
Someone took the factory filter off of my 1998 kawasaki lakota 4 wheeler and I need the filter to hook directly to the carburetor. Will it fit like that?
A shopper on Mar 11, 2017
BEST ANSWER: No, this filter is designed to fit in your factory air box. There are universal filters available that you may be able to measure the dimensions you need though.
Are these already oiled or do you have to by oil too?
A shopper on Mar 19, 2020
BEST ANSWER: These are not pre-oiled, unfortunately.
I have a 2014 Honda trx 400. Will a 1999-2009 fit? I ordered for 2014 and that's what they sent me. Thanks
A shopper on Sep 22, 2016
BEST ANSWER: Yes, they're the same filter. It will fit 1999-2008 TRX400EX, 2009-2014 TRX400X, and 2004-2005 TRX450R.
Does this filter do good on dirt roads?
A shopper on Aug 18, 2016
BEST ANSWER: Yes, this is a great filter for off-road machines.
Are the dual layer filters glued/bonded together or separate?
Emmanuel R on Jan 27, 2019
BEST ANSWER: I can separate mine. In others words they are two different pieces.
What micron does it filter down to?
Brian K on Jan 9, 2017
BEST ANSWER: I believe down to 4 microns
Will I need to dyno or tune for this filter. I have a 03 400ex?
A shopper on Mar 31, 2017
BEST ANSWER: No this filter is a direct replacement but it does come un-oiled so make sure you oil it before use.
Can this filter be used as a filter for the clutch?
DEL S on Nov 15, 2016
BEST ANSWER: If it matches the intake tube size. I would clean the oil from the filter so that it will not lube or attack the belt system. The system most likely does not have the negative pressure overcome the filter being coated by fine particles which would stick to the oil, but not harm the belt system. The finer dust would blow through as normal, but the bigger coarser debris would be blocked.
Is this a direct bolt on replacement of the stock air filter on a 2003 Rubicon or do you have to use the metal cage from the original filter?
Taylor J on Sep 19, 2016
BEST ANSWER: If your stock filter has the metal cage then you will need to use that metal cage as well.
Does this filter require the stock filter cage?
A shopper on Apr 5, 2018
BEST ANSWER: This filter does not require the stock cage it can be run without using a cage as the cage can restrict airflow into the carburetor. It might tend to collapse without the cage but as long as its oiled properly it should function as normal
Do I need to buy a filter basket I have a k&n now and want to replace it with a uni?
Brandon S on Mar 7, 2020
BEST ANSWER: If the k &N doesn't use a filter cage then you'll have to buy one to use these foam filters
Does this come with the frame(flat filter, no cage)? Asking for XR650R.
Jack L on Jun 20, 2019
BEST ANSWER: Miine came with a cage for my 84 XR 500R
Where can I get an adapter?
A shopper on Dec 20, 2017
BEST ANSWER: uni filters use your stock filter cage. once in a while they will come with a cage built into it for example on an XR600/XR650.
Can i use k and n #99-5000 air filter cleaning kit on my uni air filter?
A shopper on May 17, 2017
BEST ANSWER: The K & N Recharger Kit 6.5 oz Oil, 12 oz Cleaner is only to be used on K&N filters. I'm sorry for the inconvenience.
Does this fit a crf70f ?
A shopper on Feb 5, 2020
BEST ANSWER: To see if this part will fit your machine please enter the make, model, and year into our "Choose a vehicle" drop down boxes found above the product image. If your machine is not listed, we may not carry the right item for your application.
Does it come with a clamp?
A shopper on Nov 1, 2019
BEST ANSWER: I would be happy to look into this for you. What is the year, make and model for your machine?
will this filter fit a yamaha wolverine x2?
A shopper on Oct 21, 2019
BEST ANSWER: To see if this part will fit your machine please enter the make, model, and year into our "Choose a vehicle" drop down boxes found above the product image. If your machine is not listed, we may not carry the right item for your application. If you have a 2020 year model but don't see your machine as an option, please contact a tech via Live Chat or call us at 1-800-336-5437 for assistance.
What are the size ?
A shopper on Oct 7, 2019
BEST ANSWER: I would be happy to look into this for you. What is the year, make and model for your machine?
Does this fit a 2014 YFZ450R?
A shopper on Sep 17, 2019
BEST ANSWER: To see if this part will fit your machine please enter the make, model, and year into our "Choose a vehicle" drop down boxes found above the product image. If your machine is not listed, we may not carry the right item for your application.
Will this fit a 1 7/16" carburetor intake?
John M on May 4, 2019
BEST ANSWER: Not sure. I use it on a 13 Suzuki Kingquad 750
Any word on when Rocky Mountain will have the new UNI filter NU-3271ST for the 2018-2019 Yamaha Wolverine X4/X2 models in stock?
Joseph M on Jan 31, 2019
BEST ANSWER: We currently do not have any information on when we will have this. I apologize for the inconvenience.
Will an air filter from off of a 2004 yamaha yfz450 atv fit onto a 1999 honda foreman 400 4x4 a tv?
A shopper on Jan 29, 2019
BEST ANSWER: No
Will this fit my 2018 yfz 450r ?
A shopper on Sep 10, 2018
BEST ANSWER: To see if this part will fit your machine please enter the make, model, and year into our "Choose a vehicle" drop down boxes found above the product image. If your machine is not listed, we may not carry the right item for your application. If you have a 2019 year model but don't see your machine as an option, please contact a tech via Live Chat or call us at 1-800-336-5437 for assistance.
Do you get both of the air filters that shown in the picture? Just curious
A shopper on Aug 31, 2018
BEST ANSWER: No, you will only get one filter.
Does this come with the inner canister for a 400ex?
BRANDON B on Aug 23, 2018
BEST ANSWER: No it doesn’t, you have to reuse the oem cage.
Does this fit my 07 Suzuki ltr450, currently has a mod quad intake with kn&n. 3 1/2 in diameter ???
angel s on Aug 14, 2018
BEST ANSWER: Sorry, don't know about your Sazook but it fit my 07 Polaris Sportsman 500 just fine. Works great!
Will this fit on a 1997 xr400r dirt bike ?
A shopper on Mar 28, 2018
BEST ANSWER: Yes, you will just need to enter in your machine in the drop down boxes above the product image.
Does this filter come with the high flow plastic cage?
A shopper on Jul 3, 2017
BEST ANSWER: No, this will only be the air filter.
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