K&N Air Filter
K&N Air Filter

$42.07 - $172.46
15% Off - Save up to $30.43

Select your bike to see if this air filter fits
Item #KNN0001

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44 Reviews
4.6 out of 5 stars
5 Star   37 4 Star   3 3 Star   0 2 Star   2 1 Star   2
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All Reviews
Durability 5/5 Ease of Installation 1/5 Performance 5/5 Style 5/5
2010 KLX 250S Not an exact fit

I was looking for a new filter for my 2010 KLX 250S and came across this K&N on MotoSport which stated it fit my bike. Before making the purchase I searched other sites to compare prices. Each site, including K&N all stated the KA-1287 fitted up to the 2009 KLX. Still wanting a K&N filter I used a MotoSport contact form and asked about the fitment. I also called and was reassured that it would fit. Once the filter arrived, I began the install. The filter itself did fit and base of the filter seated well. However the plastic lid or cover was too large for the bottom of the air box. The bottom of the air box is contoured or molded same as the rear inner fender. This is what caused the fitment problem with the plastic lid or cover. I'm returning the filter and will hope I get my refund. Will update when return process is completed.

Bottom of air box on 2010 KLX 250 that is contoured same as rear inner fender.
Plastic Lid unable to seat to filter with
Verified Purchaser
Durability 5/5 Ease of Installation 5/5 Performance 2/5 Style 5/5
In Stock and On Time

Simple: I needed it and MotoSpirt had it. Easy search and discovery, filtering results, and purchase. More than happy and dedicated customer, thanks again!

Verified Purchaser
Durability 4/5 Ease of Installation 4/5 Performance 3/5 Style 4/5
Easy install

Classic K&N, over priced, well made, good fit, good instructions.

Verified Purchaser
Bonneau sc
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Style 5/5
It fit

It fit !

Lexington, KY, USA
Durability 2/5 Ease of Installation 2/5 Performance 2/5 Style 2/5
Very Disappointed

Product part number KA-1596 stated that it would fit my 2007 Kawasaki Mean Streak but it did not! Very frustrating buying such an expensive air filter, for it to to not work for my motorcycle.

Durability 5/5 Ease of Installation 5/5 Performance 5/5 Style 5/5
Great Product

I had installed this and I just rode around the yard and I could feel the difference in torque and it feels like it's breathing a lot better!

Verified Purchaser
Durability 4/5 Ease of Installation 4/5 Performance 4/5 Style 4/5

MotoSport Staff Expert Verified Purchaser
Portland, OR, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Style 5/5
Direct fit

easy fitment, everything required, great upgrade

Verified Purchaser
Sandown, NH 03873, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Style 5/5
NH Riding!

Great filter but if in dusty areas would go with a Uni, but hasn't let me down yet!

Verified Purchaser
Cleveland, OH, USA
Durability 5/5 Ease of Installation 5/5 Performance 5/5 Style 5/5

Great fit .....Great product

See 10 More Reviews
13 Questions
Answered:   11
Not Yet:   0
Q: Does this air filter come with a gasket?
28 days ago
Q: Does this filter come with a gasket?
28 days ago
Q: Which K&N Air filter will fit my 01 Yamaha Warrior 350
3 months 10 days ago
Top 250 Contributor
3 months 10 days ago
A: Input the make, model, and year information under the ATV category that will allow you to find the correct K&N filter you require.
Q: Does the order give you only one air filter or two?
4 months 18 days ago
Top 10 Contributor
4 months 18 days ago
A: One
Q: Does This Ship in 3 Days
2 years 8 months ago
Do these filters (K&N KA-5090) really ship in 3 days after ordering. Most places I'm looking at say 10-15 days before they ship due to them being ordered directly from K&N. If you can promise me faster than 3 weeks I'll cancel my other order and buy yours.
Expert MotoSport Staff
2 years 8 months ago
A: The K&N Air Filter for your 1995 Kawasaki Vulcan EN500 Requires 3-5 Business Days to Ship from Our Warehouse.
For availability and help with your order feel free to give us a call at 888-676-8853.
2 years 8 months ago
A: I got mine in about 2 days
Q: I have a 1984 Honda Shadow VT700c
Over 3 years ago
I am looking to replace the OEM airbox with something aftermarket to increase the air flow was told K&N pods will do the trick I have already installed stage 3 jets and custom exhaust... is this the K&N product they are telling me about ?
K&N Air Filter
MotoSport Staff Expert
Over 3 years ago
A: This K&N Air Filter would actually be an OEM replacement which would fit into your original O.E.M. air box without modification or jet changes. What you are looking for would be a clamp on filter. You would need to measure the OD of the carb flange where your air boot currently clamps on and and the length that would fit. Then give us a call. If the correct size filter you are looking for is available through one of our suppliers, we would be happy to order it for you. Please contact one of our sales professionals to inquire about special orders and availability.
Dirt Bike / ATV: 1-888-676-8853
Q: Why won't the modquad afs fit my ltz 400
Over 3 years ago
I bought the afs modquad for my 2014 ltz 400. It said it would fit my quad but doesn't. There is nothing in my air box for air filter to be hose clamped to. What do I have to do?
MotoSport Staff Expert
Over 3 years ago
A: The K&N air filter for the Modquad AFS is only compatible with the Modquad Air Flow System. The K&N filter is only one part of the three-piece Modquad AFS.
Q: I have a 2008 Honda Forman 500 with a jet kit and a K&N air filter do i have to tune something
Over 3 years ago
Top 1 Contributor
Over 3 years ago
A: There is not a specific setting I could give you for jetting your bike. It would really depend on your location (altitude/temperature) and how your bike is running with the current jetting. Jetting can be very tricky, there isn't one setting that will work everywhere with every bike. I would recommend taking your bike to a local motorcycle dealership’s service department to have your bike properly jetted.
Q: Will this filter fit in the stock air box?
Over 3 years ago
if I order the k&n air filter will I have to change the stock air box from the 2014 raptor 700r or do I have to change something else?
Top 1 Contributor
Over 3 years ago
A: K&N replacement filters are designed for all motorcycles and ATVs to O.E.M. (manufacturer) size specifications and fit into your original O.E.M. air box without modification or jet changes.
Q: I'm missing the original filter and associated components.Does this K/N replacement filter need the original filter components?
Over 3 years ago
What other filters do you sell that will work without the original filter components?
Top 1 Contributor
Over 3 years ago
A: The K&N filter listed here is a replacement filters are designed for all motorcycles and ATVs to O.E.M. (manufacturer) size specifications and fit into your original O.E.M. air box without modification or jet changes.

They do make POD filters available, which you will have to measure to make sure you select the correct size.
1 - 10 of 13
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See Fitments
# Part Numbers
Product Variant Manufacturer Part #
Buell N/A
Harley Davidson N/A
Honda N/A
Kawasaki N/A
Standard N/A
Suzuki N/A
Triumph N/A
Yamaha N/A
Standard AC-6504
Standard AC-4096-1
Standard AC-4004
Standard YA-3502
Modquad AFS RU-0210
Standard KA-7504
Standard KA-7408
Standard YA-2088
BMW BM-1010
CAN-AM CM-9908
Standard CM-8012
Ducati DU-1007
Ducati DU-1112
Ducati DU-6908
Standard HA-5000
OEM Replacement YA-6602
Standard YA-7007
Honda HA-1004
Honda HA-1008
Honda HA-1110
Honda HA-1187
Honda HA-1199
Honda HA-1302
Honda HA-1330
Honda HA-1596
Honda HA-1801
Honda HA-1802
Honda Pair HA-5100
Honda HA-6001
Honda HA-6003
Honda HA-6007
Honda HA-6088
Honda HA-7500
Honda HA-7504
Honda HA-7594
Honda HA-8088
Honda HA-8098
Honda HA-9002
Honda HA-9200
Honda HA-9502
Harley Davidson HD-0800
Harley Davidson Screamin' Eagle HD-0808
Harley Davidson Screamin' Eagle HD-0818
Harley Davidson Screamin' Eagle HD-0900
Harley Davidson HD-1102
Harley Davidson HD-1208
Harley Davidson HD-1388
Harley Davidson HD-1390
Harley Davidson HD-1395
Harley Davidson HD-1499
Harley Davidson HD-1508
Harley Davidson HD-2084
Harley Davidson HD-2085
Harley Davidson HD-2086
Harley Davidson HD-8834
Harley Davidson HD-8899
Harley Davidson HD-9608
Kawasaki KA-1003
Kawasaki KA-1004
Kawasaki KA-1008
Kawasaki KA-1010
Kawasaki KA-1011
Honda KA-1093
Honda KA-1199
Kawasaki KA-1299-1
Kawasaki KA-1406
Kawasaki KA-1596
Kawasaki KA-1603
Kawasaki KA-1709
Kawasaki KA-2008
Kawasaki KA-2508
Kawasaki KA-5087
Kawasaki KA-5090
Kawasaki KA-5096
Kawasaki KA-6003
Kawasaki KA-6005
Kawasaki KA-6009
Kawasaki KA-6098
Kawasaki KA-7586
Kawasaki KA-7596
Kawasaki KA-8095
Kawasaki KA-9006
Kawasaki KA-9098
Standard KA-4508
Standard KA-6503
Standard YA-4000
Standard YA-3504
Standard SU-7005
Standard SU-4250
Modquad AFS RU-2990
Standard SU-4506
Modquad AFS RB-0900
OEM Replacement SU-4002
Standard PL-5003
Standard HA-3500
OEM Replacement YA-6601
Modquad AFS RU-1620
Modquad AFS RU-4720
Modquad AFS YA-3502
Standard YA-6504
Standard PL-1003
Suzuki SU-1002
Suzuki SU-1005
Suzuki SU-1009
Suzuki SU-1308
Suzuki SU-1399
Suzuki SU-1487
Suzuki SU-1598
Suzuki SU-1806
Suzuki SU-5589
Suzuki SU-6000
Suzuki SU-7506
Yamaha YA-1007
Yamaha YA-6006
Suzuki SU-6503
Suzuki SU-6505
Suzuki SU-6595
Suzuki SU-7086
Suzuki SU-7500
Suzuki SU-7511
Suzuki SU-7504
Suzuki SU-7592
Suzuki SU-7596
Suzuki SU-8001
Suzuki SU-8005
Standard HA-2504
Standard HA-4250
Standard HA-3094
Modquad AFS RU-2430
OEM Replacement HA-4099
OEM Replacement BD-6500
Modquad AFS RU-2590
OEM Replacement HA-4504
Standard SU-5002
Standard YA-4350
Standard YA-3586
Standard RC-2540
Yamaha YA-1001
Yamaha YA-1002
Yamaha YA-1004
Yamaha YA-1006
Yamaha YA-1009
Yamaha YA-1098
Yamaha YA-1186
Yamaha YA-1199
Yamaha YA-1285
Yamaha YA-1301
Yamaha YA-1307
Yamaha YA-1399
Yamaha YA-1595
Yamaha Stock Airbox YA-1602
Yamaha YA-1699
Yamaha YA-1704
Yamaha YA-1709
Yamaha YA-1906
Yamaha YA-6001
Yamaha YA-6004
Yamaha YA-6008
Yamaha YA-6009
Yamaha YA-6598
OEM Replacement YA-4504
Modquad AFS RU-3480
Honda HA-6592
Aprilia AL-1004
Aprilia AL-1010
Aprilia AL-1098
Aprilia AL-6502
Aprilia AL-6505
BMW BM-0400
BMW BM-1113
BMW BM-1199
BMW BM-1204
BMW BM-1205
BMW BM-1208
BMW BM-1299
BMW BM-1611
BMW BM-2605
BMW BM-6501
BMW BM-6507
BMW BM-8006
Buell BU-1108
Buell BU-9003
Can-Am CM-9910
Ducati DU-0900
Ducati DU-1004
Ducati DU-1006
Ducati DU-1210
Ducati DU-6202
Ducati DU-9001
Ducati DU-9098
Honda HA-0003
Honda HA-0011
Honda HA-0100
Honda HA-0300
Honda HA-0700
Honda HA-0750
Honda HA-0783
Honda HA-0800
Honda HA-0850
Honda HA-0900
Honda HA-1009
Honda HA-1013-1
Honda HA-1079
Honda HA-1087
Honda HA-1191
Honda HA-1197
Honda HA-1210
Honda HA-1245
Honda HA-1250
Honda HA-1301
Honda HA-1310
Honda HA-1313
Honda HA-1326
Honda HA-2511
Honda HA-2596
Honda HA-3010
Honda HA-3084
Honda HA-5013
Honda HA-5083
Honda HA-5583
Honda HA-6087
Honda HA-6091
Honda HA-6095
Honda HA-6098
Honda HA-6099
Honda HA-6583
Honda HA-7012
Honda HA-7084
Honda HA-7580
Honda HA-7587
Honda HA-7591
Honda HA-7598
Honda HA-8080
Honda HA-8084
Honda HA-8089
Honda HA-9092-A
Harley HD-0910
Harley HD-1212
Harley HD-1611
Harley HD-1614
Kawasaki KA-0004
Kawasaki KA-0750
Kawasaki KA-0800
Kawasaki KA-0850
Kawasaki KA-0883
Kawasaki KA-1000
Kawasaki KA-1088
Kawasaki KA-1100
Kawasaki KA-1111
Kawasaki KA-1150
Kawasaki KA-1192
Kawasaki KA-1200
Kawasaki KA-1350
Kawasaki KA-1600
Kawasaki KA-1700
Kawasaki KA-2586
Kawasaki KA-6007
Kawasaki KA-6093
Kawasaki KA-6095
Kawasaki KA-6512
Kawasaki KA-7500
Kawasaki KA-7580
Kawasaki KA-7583
Kawasaki KA-7587
Kawasaki KA-7589
Kawasaki KA-8076
Kawasaki KA-8077
Kawasaki KA-9084
Kawasaki KA-9094
KTM KT-1108
KTM KT-1113
KTM KT-6907
KTM KT-6908
KTM KT-9907
Victory PL-1500
Victory PL-1598
Victory PL-1608
Suzuki SU-0007-A
Suzuki SU-0015
Suzuki SU-1191
Suzuki SU-1200
Suzuki SU-1250
Suzuki SU-1284
Suzuki SU-1348
Suzuki SU-2513
Suzuki SU-5500
Suzuki SU-5503
Suzuki SU-6509
Suzuki SU-6599
Suzuki SU-7503
Suzuki SU-7588
Suzuki SU-7593
Suzuki SU-8009
Suzuki SU-9094
Triumph TB-1005
Triumph TB-1011
Triumph TB-1212
Triumph TB-1213
Triumph TB-1610
Triumph TB-2204
Triumph TB-6000
Triumph TB-6706
Triumph TB-6713
Triumph TB-8002
Triumph TB-8011
Triumph TB-9002
Triumph TB-9004
Triumph TB-9091
Triumph TB-9095
Triumph TB-9097
Yamaha YA-0700
Yamaha YA-1050
Yamaha YA-1089
Yamaha YA-1152
Yamaha YA-1184
Yamaha YA-1210
Yamaha YA-1283
Yamaha YA-1300
Yamaha YA-1400
Yamaha YA-1550
Yamaha YA-1600
Yamaha Speedstar Intake Only YA-1602-U
Yamaha YA-1650
Yamaha YA-1684
Yamaha YA-1686
Yamaha YA-1892
Yamaha YA-2588
Yamaha YA-4085
Yamaha YA-5008
Yamaha YA-6050
Yamaha YA-6089
Yamaha YA-6092
Yamaha YA-6094
Yamaha YA-6096
Yamaha YA-7080
Yamaha YA-7086
Yamaha YA-7585
Yamaha YA-7593
Yamaha YA-8514
Yamaha YA-9083
Yamaha YA-9514
Yamaha YA-0587
Standard AC-1009
Standard AC-1012
Standard AC-3098
Standard AC-7009
Standard AC-7014
Standard BD-3303
Standard BD-6506
Standard CM-8011
Standard HA-0510
Standard HA-1088
Standard HA-2420
Standard HA-2501
Standard HA-2597
Standard HA-3093
Standard HA-3098
Standard HA-4207
Standard HA-4435
Standard HA-6806
Standard HA-6808
Standard KA-2288
Standard KA-2587
Standard KA-3603
Standard KA-4093
Standard KA-6201
Standard KA-7508
Standard KA-7512
OEM Replacement KA-7513
Standard KY-2504
Standard PL-1001
Standard PL-1002
Standard PL-1004
Standard PL-1005
Standard PL-1014
Standard PL-1710
Standard PL-3214
Standard PL-5006
Standard PL-5008
Standard PL-5509
Standard PL-5712
Standard PL-8007
Standard PL-9011
Standard SU-2588
Standard SU-5098
Standard YA-2597
Standard YA-4001
Standard YA-4003
Standard YA-7008
Standard YA-8002
Indian PL-1814
Indian PL-1115
Standard HD-4915
Standard CM-1314
Standard HA-6414
Standard KA-9915
Standard KT-1211
Standard KT-6912
Standard SU-1014
Standard SU-6006
Standard YA-3215
Standard YA-6814
Standard SU-9915
Standard KA-1016
Standard DU-8015
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