K/N s replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. Our stock replacement air filters for street vehicles are covered by K/N s Million-Mile Limited Warranty.
Air Filter Outlet Shape Round
Air Filter Shape Round
Automotive Item Grade High Performance
California Proposition 65 Yes
Cap Outside Diameter N/A
Color Heather Red
Country of Origin (Primary) US
Diameter Inside (in.) 12
Diameter Outside (in.) 14
Filter Material Cotton Gauze
Filter Re-Oiling Amount 3.5 oz (103 ml)
Filter Style Dry
Flange Angle 0 Degree
Flanges None
Frame Design Flexible
Harmonized Tariff Code (Schedule B) 8421310000
Hazardous Material Code N
Height 6 in (152 mm)
Height (in.) 6.000 in. (152mm)
Inner Wire Yes
Inside Diameter 12.000 in. (305mm)
Item Height 6.000 in. (152mm)
Item Type High Performance
Item Weight 3.400 lbs.
Life Cycle Status Code Available to Order
Machine Washable Yes
NAFTA Preference Criterion Code B
Number of Flanges None
Oil Included Filter Is Pre-Oiled
Outside Diameter 14.000 in. (356mm)
Outside Width 14 in.
Overall Length N/A
Overall Length (in.) N/A
Package Content 1
Package Contents 1 Air Filter
Package Material Paperboard
Package Quantity 1
Package Type Box
Pre-Screened No
Product Box Height 14.500 in. (368mm)
Product Box Length 14.250 in. (362mm)
Product Box Width 6.500 in. (165mm)
Product Style Round Air Filter
Prop 65 (C, R or CR) CR
Prop 65 - Short Label WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 Warning WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
Prop 65 Warning Label https://www.knfilters.com/images/l/prop65.jpg
Prop 65 Yes/No Yes
SDR Required Flag N
Shape Round
Top Material None
Top Material/Finish None
Top Style Open
WARNING CA Proposition 65 Yes
WARNING CA Proposition 65 Message WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Warranty 1,000,000 Miles/10 Year
Washable Yes
Weight 3.4 lb (1.5 kg)
Width (in.) 14

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K&N E-3770 Round Air Filter

Product Information

  • Brand: K&N
  • Product Number: E-3770
  • $88.99

The AAM Group™ Proposition 65
Proposition 65 warning graphic (For California Residents)