Uni Air Filter

Choose a machine

User Tip: If you're unsure of your vehicle type, you may skip the machine type selection box.

Use one of my Saved Machines
Uni Air Filter
  • View Larger
  • Video

Uni Air Filter

Our Price: $8.05 – $70.09

MSRP: $8.95 - $92.95 - You save up to $22.86 (25% off)

View Product Details

Select type, year, make and model above

Live Help
  • "Customer service is priority #1 at Rocky Mountain ATV/MC. We value our customers and strive to be the best shopping experience- when you buy from us, you are buying lifetime service."

    -Dan Thomas, CEO and Founder

  • Returns

    We take pride in offering no hassle returns. In the event of a return, please call, email or chat with us to receive a solution to the problem. For apparel that doesn't fit quite right, Click here to see our Fit Guaranteed Program.

  • Warranties

    We will stand behind all products we sell with regards to manufacturing defects in workmanship and material. Most products are limited to the manufacturer's warranty. However, we will do everything in our power to take care of the problem.

  • Have questions?

    Live Help (Leave email if after hours)
    Email: sales@rockymountainatv.com
    Call us: 1 800 336-5437
    7am-7pm Mon-Fri 8am-4pm Sat (Mountain Time)

Additional Videos

How to Oil a Uni Filter

How To - Clean & Oil An Air Filter

RM YouTube Channel
SUBSCRIBE

How to Oil a Uni Filter

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

Each review submitted enters you into a
$100 gift card monthly drawing and a
$500 gift card quarterly drawing!
 
Powered by TurnTo
4.7 / 5.0
501 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
421
53
12
5
10
Value
4.8 / 5
Longevity
4.8 / 5
Fitment
4.9 / 5
Performance
4.9 / 5
Recommend it?
Yes (159)
No (3)
Value
5 / 5
Longevity
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
You can’t go wrong with uni
This is the best upgrade filter

-m-2004 HONDA TRX 450R--
April 15, 2019
Fayetteville, NC, US
Age: 15-24
Purchased
 4 weeks ago
Gender:
Male
Weight:
191 - 220 lbs.
Height:
>6'7
Value
5 / 5
Longevity
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Love it. Works really well and is pretty easy to clean. Need to order another one soon.
April 9, 2019
SYRACUSE, UT, US
Age: 25-44
Purchased
 1 year 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
I love uni filters I have them on all of my toys.

-m-2004 KAWASAKI KX250--
April 5, 2019
Henderson , NV, US
Age: 25-44
Purchased
 1 month ago
Gender:
Male
Weight:
>281 lbs.
Height:
6'1 - 6'3
Value
5 / 5
Longevity
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Good buy
Had a bunch of stuff "borrowed" from bike including air filter cage. This came with the plastic frame to hold the filter so I didn't have to track one down. Perfect fit, keeps crap out. Glad I bought it
March 16, 2019
Courtenay, BC, CA
Age: 25-44
Purchased
 2 months ago
Value
5 / 5
Longevity
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Way better than oem dry filter
Came with a dual stage for my 2016 rzr. Make sure to use filter oil .

-m-2005 SUZUKI RM250--
March 16, 2019
woodsboro, MD, US
Age: 25-44
Purchased
 1 month ago
Gender:
Male
Weight:
131 - 160 lbs.
Height:
5'4 - 5'6
Value
4 / 5
Longevity
4 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
filter
fit very well seems to be well built will see how it fairs after a few washings
March 15, 2019
norfolk, NE, US
Age: 25-44
Purchased
 1 month ago
Gender:
Male
Weight:
251 - 280 lbs.
Height:
6'1 - 6'3
Value
5 / 5
Longevity
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
INDESTRUCTIBLE!!!
Great filter, picked this filter up for my sons kfx 90 because the stock one was completely tarnished, he has ran this filter for quite some time now through snow, sand, light mud, etc. cleaning is quick and easy. THANKS UNI FOR A GREAT DURABLE FILTER!!!

-m-2011 KAWASAKI KFX 90--
February 25, 2019
Sebring, FL, US
Age: 15-24
Gender:
Male
Weight:
131 - 160 lbs.
Height:
5'7 - 5'9
Recommend it?
Yes
Good filters
Uni filters and products work well for my Honda, have used them for years and always happy with them.

-m-2013 HONDA CRF450R--
February 5, 2019
Eugene, OR, US
Age: 45-64
Purchased
 3 months ago
Gender:
Male
Weight:
161 - 190 lbs.
Height:
5'10 - 6'0
Longevity
3 / 5
Fitment
4 / 5
Performance
5 / 5
Recommend it?
No
Ripped
This is a great filter no doubt about that, but within a few months it ripped down by the lip piece that connects to the air boot, and these filters are a bit pricey. they have always done a great job keeping dirt out, but since it ripped so quickly i wouldn't recommend and i always do routine cleanings and really lube these filters... i'll stick to No Toil filters, cheaper and breath good
January 25, 2019
fallon, NV, US
Value
5 / 5
Longevity
5 / 5
Fitment
5 / 5
Performance
5 / 5
Recommend it?
Yes
Great filter.
High quality filter. Excellent fit and durability does it’s job keeping the dirt out!

-m-ATV--
January 23, 2019
Tallahassee , FL, US
Age: 45-64
Purchased
 3 months ago
Gender:
Male
Weight:
191 - 220 lbs.
Height:
5'10 - 6'0
Each question or answer submitted enters you into a:
$100 gift card monthly drawing and a
$500 gift card quarterly drawing!
Powered by TurnTo
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 30 questions Browse 30 questions and 83 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.
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.
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.
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.
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
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.
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.
I am planning to get this filter. I run airbox lid off. Do I need to get an outerwears cover or can I run it as is?
Manuel A on Apr 15, 2017
BEST ANSWER: You don't have to have an Outerwears cover, but if you don't have any other sort of filter protection, I'd recommend running one.
This is going a Kawasaki KSF 50, the current filter housing bolts to the back of the carb. The carb barrel is not round. How will this filter attach?
A shopper on Feb 7, 2017
BEST ANSWER: Should be a factory replacement
For a 2003 Honda XR50 it states it is a stock replacement but shows pics of the tube shaped one that attaches to end of carb, just trying to verify before I purchase? Thanks!
LOGAN R on Jan 23, 2017
BEST ANSWER: This picture is generic and doesn't necessarily represent the actual product you will receive. If your machine is listed in the drop down menu, you will receive the correct one for your machine.
Will this fit a 2013 kawasaki klr 650?
Michael F on Oct 8, 2016
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.
Which filter for a Tao Tao Bull 150 atv?
A shopper on Oct 4, 2016
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 2017 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.
Does this filter come with the holder element or is there one built inside?
Alan W on Sep 11, 2016
BEST ANSWER: It depends on the application. If it's a clamp on filter it will include the holder. If it is a standard filter that fits over a cage, then it will not include the cage, only the foam filter.
I just got a kx80 with a uni filter on it , do I need to oil both inner & outer filters or just one or the other?
Kevin S on Sep 10, 2016
BEST ANSWER: All foam surfaces need to be oiled to be the most effective.
does it come pre oiled?
robbie on Aug 31, 2016
BEST ANSWER: No, it does not come pre oiled.
Hi, does the uni filter fits my can am ds 450 2015? Thank you.
A shopper on Aug 23, 2016
BEST ANSWER: I checked into this for you and this will fit the 2015 Can-Am DS 450 X MX and the DS450 X XC models. But it we do not have it listed to fit the DS 450.
RM Cash ProgramParts Finder