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K&N Universal Custom Air Filter - Oval Shape 9.313in OD / 2.375 Height - E-3988 by K&N Engineering - front view
K&N Universal Custom Air Filter - Oval Shape 9.313in OD / 2.375 Height - E-3988 by K&N Engineering - angle view
K&N Universal Custom Air Filter - Oval Shape 9.313in OD / 2.375 Height - E-3988 by K&N Engineering - detail view
K&N Universal Custom Air Filter - Oval Shape 9.313in OD / 2.375 Height - E-3988 by K&N Engineering - installed view
K&N Universal Custom Air Filter - Oval Shape 9.313in OD / 2.375 Height - E-3988 by K&N Engineering - close-up
K&N Universal Custom Air Filter - Oval Shape 9.313in OD / 2.375 Height - E-3988 by K&N Engineering - alternate view
K&N Universal Custom Air Filter - Oval Shape 9.313in OD / 2.375 Height - E-3988 by K&N Engineering - side view
K&N Universal Custom Air Filter - Oval Shape 9.313in OD / 2.375 Height - E-3988 by K&N Engineering - rear view
K&N Universal Custom Air Filter - Oval Shape 9.313in OD / 2.375 Height - E-3988 by K&N Engineering - package contents
K&N Universal Custom Air Filter - Oval Shape 9.313in OD / 2.375 Height - E-3988 by K&N Engineering - additional view
K&N Universal Custom Air Filter - Oval Shape 9.313in OD / 2.375 Height - E-3988 by K&N Engineering - front view
K&N Universal Custom Air Filter - Oval Shape 9.313in OD / 2.375 Height - E-3988 by K&N Engineering - angle view
K&N Universal Custom Air Filter - Oval Shape 9.313in OD / 2.375 Height - E-3988 by K&N Engineering - detail view
K&N Universal Custom Air Filter - Oval Shape 9.313in OD / 2.375 Height - E-3988 by K&N Engineering - installed view

K&N Engineering Part # KNNE-3988

K&N Universal Custom Air Filter - Oval Shape 9.313in OD / 2.375 Height - E-3988

$77.27 CAD
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Canadian since 2005 Questions? Email sales@raptorracing.com

The K&N replacement air filter for RK Series air cleaner assemblies is designed to increase horsepower and acceleration while providing excellent filtration. The air filter is washable and reusable and designed to be used as a replacement air filter for specific K&N RK Series air cleaner assemblies for Harley-Davidson motorcycles. The air filter is covered by the famous K&N Million-Mile Limited Warranty

  • Replacement air filter for specific RK Series air cleaner assemblies
  • Designed to boost horsepower and rate of acceleration
  • Washable and reusable
  • High air flow filter media provides exceptional filtration
  • Million Mile Limited Warranty®

  • Package Contents: 1 Air Filter
  • Weight: 1.1 lb (0.5 kg)
  • Base Outside Length: 10 in (254 mm)
  • Height: 2.375 in (60 mm)
  • Top Outside Width: 5 in (127 mm)
  • Base Outside Width: 6 in (152 mm)
  • Top Outside Length: 8 in (203 mm)
  • Outside Diameter: 9.313 in (237 mm)
  • Air Filter Material: Cotton Gauze
  • Inner Wire: No
  • Air Filter Shape: Oval Tapered
  • Oil Included: Yes
  • Warranty: 1,000,000 Miles/10 Year

Free Canadian shipping on qualifying orders $399+, with no duties or brokerage. Special order and made-to-order items can't be cancelled or refunded once ordered. Oversized items may carry a handling fee depending on your location; pickup in Mississauga has no fee.

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Free Canadian shipping on qualifying orders $399+

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