$15.99 USD
Free Ground Shipping!
In Stock & Ready to Ship!
Find a Dealer

K&N KN-171B Oil Filter

Oil Filters > Oil Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.9 out of 5 stars   45 Customer Reviews
  • O/E replacement oil filters for most cars, trucks, SUV's, motorcycles, & ATV's
  • 17 mm exposed nut designed for easy oil filter removal
  • Heavy duty construction for extreme conditions
  • Anti-drain back valve (where applicable) eliminates dry starts, prevents oil from draining back into crankcase during engine shutdown
K&N powersports oil filters contain a modern synthetic filter media, designed for ultimate flow with less pressure drop, yet engineered for outstanding filtration. K&N powersports 'spin-on' oil filters feature a heavy-duty metal can. Most of these have a 17 mm nut affixed onto the end that allows for easy removal. The 17 mm nut is crossed-drilled so racers can safety wire the filter to their bike.

[More Information on Powersport Canister Oil Filters]

Product Specifications

Anti Drain Back ValveYes
Bypass ValveYes
Filter MaterialHigh Flow Premium Media
Gasket MaterialNitrile Rubber
Height3.906 in (99 mm)
Outside Diameter2.906 in (74 mm)
PSI Relief ValveYes
Removal NutYes
Thread Specification3/4 In. - 16 UNF
Product StyleOil Filters
Weight0.8 lb (0.4 kg)
Product Box Height4.3 in (109 mm)
Product Box Length3 in (76 mm)
Product Box Width3 in (76 mm)
Removal Nut Size17 mm

K&N KN-171B Oil Filter Product Reviews

Monday, March 19, 2018 - Part KN-171B
Easy to take off and install. Good quality and good price.

Richard Shurman
Delray Beach, Florida
Monday, March 12, 2018 - Part KN-171B
Very happy with the K&N filter on my 2003 Harley Fat Boy, I purchased this bike used in 2011, and immediately changed to full synthetic oil, and K&N oil filter, I also removed the stock air filter and replaced that with a K&N. On 4 wheels I used nothing but K&N filters, on my previous vehicle, a 2007 Jeep Liberty for both air and oil, and my present vehicle, a 2014 Toyota Tundra both air and oil. As soon as my daughter's new Jeep Cherokee is ready for it's first oil change, I got a K&N for that as well. Most reliable filters I have ever used, and will continue to use.

Anthony Migliaccio
Somers Point, New Jersey
Thursday, January 4, 2018 - Part KN-171B
Changing the oil filter on a Harley Sportster motor has been made a lot easier - even when the motor is in a Buell. The integrated wrench fitting on the K&N filter even helps lessen the inevitable oil spill.

Western Australia
Friday, December 22, 2017 - Part KN-171B
Great service, I had ordered 2 filters for 2015 Harley Roadglide Sp, received them in 3 days. Thank You.

Scott Jackson
Grimsley, Tennessee
Thursday, September 21, 2017 - Part KN-171B
Fast delivery and exactly what I ordered, I will be ordering from you again.

Allen Shelton
Cumming, Georgia
Friday, August 11, 2017 - Part KN-171B
Great product.

James Obrinski
Olivet, Michigan
Tuesday, July 11, 2017 - Part KN-171B
Awesome filter. 17 mm. nut attached eases install dramatically. Better filter material than stock.

Dan M
Somerset, Pennsylvania