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K&N Replacement Air Filter for 41-56 Harley Davidson 45/74 Cubic Inch V-Twins


  • High Air Flow with Excellent Filtration
  • Increases Horsepower and Acceleration
  • Will Not Void Vehicle Warranty
  • Million Mile Limited Warranty
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Pricing: $45.99


K&N's replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. We make over 1,200 different replacement air filters for virtually every vehicle on the road. These filters are washable and reusable and are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. With most vehicles you simply remove the disposable air filter and replace it with a K&N. See applicable instruction sheet for details. Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty and will be THE LAST AIR FILTER YOUR VEHICLE WILL EVER NEED.

Application List

1973-1984 Rover Allegro

1982-1984 Rover Ambassador

1969-1981 Rover Maxi

1955-1956 Harley Davidson 74ci V-Twin

1941-1955 Harley Davidson 45ci V-Twin


Height: 1.875 in (48 mm)

Flange Inside Diameter: 4.688 in (119 mm)

Outside Diameter: 6.063 in (154 mm)


  • E-2470
  • E-2470
  • K&N
  • New

Shipping Information

  • Item Requires Shipping
  • 0.7 lbs.
  • W3.6000” x H6.6000” x L6.5000”

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