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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   32 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 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

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
Monday, June 13, 2016 - Part KN-171B
As advertised. Took a few days but everything came as described in the time stated.

Darren Hightower
Claremore, Oklahoma
Saturday, May 21, 2016 - Part KN-171B
I'll presume this filter works the same or better (K&N reputation) than the original but overall I'd rate it higher due to its design with the simple 17 mm nut feature allowing spanner or socket use.

Friday, May 13, 2016 - Part KN-171B
Much easier to use with the built in hexagonal nut on the exterior for removal purposes........

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

South Dakota