Ships from the US · arrives in 1–2 weeks. Delivery info
K&N KN-171B motorcycle oil filter with premium synthetic media and an integrated welded nut, rated for up to 20,000 miles.
Product details
An oil filter for select Harley-Davidson models
The KN-171B is a powersports filter listed for select 1999 to 2024 Harley-Davidson models, including Fat Boy, Sport Glide, Road King Special and Street Glide variants. The full fitment list is available from the manufacturer.
Media and valve design
The filter uses premium synthetic, high-efficiency media with uniform pleats, designed to maintain high oil flow rates. It has a bypass and pressure relief valve specific to this part number, and the manufacturer states it is laboratory tested for capacity and burst strength.
Oil compatibility and pack
It is compatible with premium synthetic, conventional and blended oils, and the pack contains one filter. The integrated welded nut gives your wrench something to grip at the next oil change.
How to use
Drain the old oil, then use a spanner on the welded nut to unscrew the used filter. Fit the new filter by hand, tighten it with the spanner, refill with fresh oil and check the level. Confirm fit with the manufacturer's list.
Before you choose
This filter is listed for specific motorcycles and will not fit every model. Check the manufacturer fitment list for your exact motorcycle before ordering. US-market product: packaging and label wording may differ from UK versions.
About the brand
K&N
K&N Engineering makes performance and replacement air, oil and fuel filters for cars, motorcycles and other vehicles.
Delivery & returns
This item ships from the USA and takes longer to arrive. The standard UK-stock delivery estimates do not apply.
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Good for
Motorbike servicing
Format
Car care
K&N KN-171B Performance Motorcycle Oil Filter, Wrench Off Nut
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