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E-3180
$42.99 USD
MSRP $67.69 36.5% Off
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K&N E-3180 Air Filter

Replacement Filters > Round Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0 out of 5 stars   4 Customer Reviews
  • Designed to boost horsepower and rate of acceleration
  • Can be cleaned and used again
  • High air flow with exceptional filtration
  • Lasts up to 50,000 miles before cleaning is required depending on driving conditions
  • Works with original equipment manufacturer vehicle electronics
  • Emissions legal in all 50 US states
  • Will NOT void vehicle warranty
  • Million Mile Limited Warranty®
The K&N E-3180 Air Filter fits some Triumph Herald models. See vehicle applications link for details.
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 the majority of vehicles 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.

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Available Information

Product Specifications

Filter MaterialCotton Gauze
Height1.75 in (44 mm)
Inner WireNo
Inside Diameter4.5 in (114 mm)
Outside Diameter5.875 in (149 mm)
Top StyleOpen
Top MaterialNone
Air Filter ShapeRound
FlangesNone
Package Contents1 Air Filter
Package Quantity1
Product StyleRound Air Filter
Weight0.6 lb (0.3 kg)
Filter Re-Oiling Amount0.35 oz (10 ml)
Product Box Height6.63 in (168 mm)
Product Box Length6.5 in (165 mm)
Product Box Width3.63 in (92 mm)

K&N E-3180 Air Filter Product Reviews

Tuesday, January 16, 2018 - Part E-3180
The ability to be able to select a filter by size is great, although the filter is slightly wider, it has allowed the engine to breath much better than with the foam filter and offers far better filteration than the standard wire filter. The ordering and delivery was easy and quick. Can a filter be made to suit a vintage indian?

Chris Mullins
Canberra Australia
Tuesday, August 15, 2017 - Part E-3180
Reaaly helpful advice from telephone operator in choosing correct filter, not chat line woman who knew nothing. Great service and highly recommended. Mark

Mark Staveley
Stockbridge, United Kingdom
Saturday, January 7, 2017 - Part E-3180
It's the second pair of these filters I've gotten. They work & look great on my Datsun Roadsters.

William McDermott
Walton, Oregon