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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   4.8 out of 5 stars   26 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
  • Resin-impregnated filter media traps 99% of harmful contaminants
  • Anti-drainback 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 installation and 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
Height4.063 in (103 mm)
Outside Diameter3 in (76 mm)
Product Box Height4.3 in (109 mm)
Product Box Length3.2 in (81 mm)
Product Box Width3.2 in (81 mm)
Product StyleOil Filters
PSI Relief ValveYes
Removal NutYes
Removal Nut Size17 mm
Thread Specification3/4 In. - 16 UNF
Weight0.8 lb (0.4 kg)

K&N KN-171B Oil Filter Product Reviews

Monday, April 18, 2016 - Part KN-171B
Been using them for years. Not a single problem. The nut helps with removal.

South Dakota
Saturday, March 05, 2016 - Part KN-171B
This is the best oil filter I can use for my H-D The nut is perfect for on and off maintenance, and K&N's reputation for solid products goes without saying. Thank you, I'll be back!

Tuesday, January 12, 2016 - Part KN-171B
First class product.

Oxford, United Kingdom
Monday, January 11, 2016 - Part KN-171B
K&N has a great web site. I used their vehicle search to find the correct filter for my Harley Davidson 103. I really like the nut on the end of the filter as it makes installation and removal easy, no special tools required. An overall excellent experience Fast shipping as well.

Harold Brooks
San Antonio, Texas
Thursday, December 10, 2015 - Part KN-171B
So disapointed that when I purchased one it said made in Korea. Going back to (brand name) filters, made in US.

William Hobbs
Banning, California
Monday, September 14, 2015 - Part KN-171B
Very impressed with the quick service, and having looked into choice of filters I settled for K&N as it is a proven quality product.

Staffordshire, United Kingdom
Friday, August 28, 2015 - Part KN-171B
Good delivery time and looks great on my bike. I look forward to being able to use the nut on the filter on my next oil change. The stock filter was difficult to remove and I got oil all over the place. This filter will be easier and cleaner.

William Glass
Tucson, Arizona