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HD-0818
$61.99 USD
MSRP $83.19 25.5% Off
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K&N HD-0818 Air Filter

Replacement Filters > Replacement Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.9 out of 5 stars   19 Customer Reviews
  • Designed to provide increased horsepower and torque
  • Pleated media provides a large filtration area offering long service intervals
  • Multiple layers of woven cotton gauze media offers excellent filtration
  • Application specific base seal and sealing bead
  • Made in the USA for over 40 years
  • Washable & reusable, pre-oiled and ready to ride!
  • Million-Mile Limited Warranty
The K&N HD-0818 Air Filter fits some Harley Davidson FLSS Softail Slim S models. See vehicle applications link for details.
K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle.

[More Information on K&N Replacement Air Filters]

Product Specifications

Air Filter ShapeRound Tapered
Filter MaterialCotton Gauze
FlangesNone
Height2.313 in (59 mm)
Package Contents1 Air Filter
Package Quantity1
Product StyleUnique Air Filters
Base Outside Diameter6 in (152 mm)
Top Outside Diameter5.5 in (140 mm)
Top StyleMetal
Top MaterialZinc
Weight1.8 lb (0.8 kg)
Filter Re-Oiling Amount0.28 oz (8 ml)
Product Box Height3.5 in (89 mm)
Product Box Length6.31 in (160 mm)
Product Box Width6.56 in (167 mm)

K&N HD-0818 Air Filter Product Reviews

Monday, March 19, 2018 - Part HD-0818
Love this filter. Installed easy and immediately noticed a difference in acceleration. I would definitely recommend to anybody still using a stock filter.

Gary Manzer
Moncks Corner, South Carolina
Monday, February 26, 2018 - Part HD-0818
I like K&N filters.

Jon McQuiston
Tucson, Arizona
Thursday, August 24, 2017 - Part HD-0818
K&N is always my go to filter.

Joseph Crouch
Kentucky