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K&N KN-138 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   49 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
Height3.031 in (77 mm)
Outside Diameter2.813 in (71 mm)
Product Box Height3.19 in (81 mm)
Product Box Length2.81 in (71 mm)
Product Box Width2.88 in (73 mm)
Product StyleOil Filters
PSI Relief ValveYes
Removal NutYes
Removal Nut Size17 mm
Thread SpecificationM20 x 1
Weight0.6 lb (0.3 kg)

K&N KN-138 Oil Filter Product Reviews

Saturday, April 22, 2017 - Part KN-138
Just installed filter. Easy on after removing side panel. Appears to be of good material. Arrived in a timely manner.

Ronnie Meraz
Thousand Oaks, California
Monday, April 3, 2017 - Part KN-138
I just installed a K&N oil filter two days ago, and rode only for one. It was extremely easy to install. I will buy it again for that reason alone.

Jan Ditzian
Mount Morris, Pennsylvania
Thursday, March 23, 2017 - Part KN-138
Not only does it do the job, it's easy because of the nut like protrusion on the end. Quite easy to remove and install.

James Pouncey
Dickinson, Texas
Wednesday, March 15, 2017 - Part KN-138
Can't fault the quality and performance of K&N filters and the nut on the end is a great idea in principle. The problem I had, however, was not having enough room to get a torque wrench with socket on behind the header pipes and the outside of the filter is smooth, can't use an oil filter wrench cap to tighten to the correct torque. Would be ideal if the filter had indents around it like normal ones so either option could be used.

Sunday, March 12, 2017 - Part KN-138
Wouldn't go with any brand other than K&N.

Kenny Hilton
Burbank, California
Thursday, February 9, 2017 - Part KN-138
Excellent product and quick service.

Norman Burrows
Lancashire, United Kingdom
Tuesday, January 17, 2017 - Part KN-138
For my Hayabusa engined OMS Hornet.

Martin Egglesfield
Shailer Park, Australia