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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   36 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-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)
Product Box Height4.3 in (109 mm)
Product Box Length3 in (76 mm)
Product Box Width3 in (76 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, March 20, 2017 - Part KN-171B
Nice filter.

Richard Dendy
Alexandria, Louisianna
Wednesday, November 2, 2016 - Part KN-171B
Good product, nice gloss finish. No problems fitting.

Peter Bentley
Ashby De La Zouch, United Kingdom
Thursday, August 25, 2016 - Part KN-171B
Brilliant........ this K&N Oil Filter (KN-171B) has changed my life. The 17mm nut on the end of the canister has made removing the old filter at oil change so easy, even in confined spaces. No more useless filter straps Thank you K&N!

Adrian Bowden
Christchurch Dorset, United Kingdom
Friday, August 19, 2016 - Part KN-171B
Great oil filter.

George Mosser
Stockholm, New Jersey
Wednesday, August 3, 2016 - Part KN-171B
The only oil filter to use on my 02 Harley road king. User friendly and can't beat it.

Gregory Mackay
Tahuya, Washington
Thursday, July 7, 2016 - Part KN-171B
Very good filter and fast service. The filter is easier to remove and install with the 17 mm built-in nut on the end..

William Turner
Chino Valley, Arizona
Wednesday, June 29, 2016 - Part KN-171B
Always use for my Harley. Delivered promptly and the welded nut makes removal and replacing so simple.

Richard Walker
Oxfordshire, United Kingdom