$98.99 USD
MSRP $153.29 35.4% Off
Free Ground Shipping!
In Stock & Ready to Ship!
Find a Dealer

K&N E-0781 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   7 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-0781 Air Filter fits some Chevrolet Silverado 2500 HD, Chevrolet Silverado 2500 HD Classic, Chevrolet Silverado 3500, Chevrolet Silverado 3500 Classic, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, GMC Sierra 2500 HD Classic, GMC Sierra 3500, GMC Sierra 3500 Classic, and GMC Sierra 3500 HD 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.

[More Information on K&N Replacement Air Filters]

Product Specifications

Air Filter ShapeUnique
Base Inside Diameter5.5 in (140 mm)
Base Outside Diameter8.5 in (216 mm)
Filter MaterialCotton Gauze
Filter Re-Oiling Amount4.61 oz (136 ml)
Height6.75 in (171 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height12.06 in (306 mm)
Product Box Length12 in (305 mm)
Product Box Width8 in (203 mm)
Product StyleUnique Air Filters
Top Outside Diameter9.25 in (235 mm)
Weight4.2 lb (1.9 kg)

K&N E-0781 Air Filter Product Reviews

Monday, November 14, 2016 - Part E-0781
Excellent product! Installed exactly as per included instructions, fit and sealed well and locked into place. Good job K&N.

Gary Elliott
Atascadero, California
Tuesday, June 28, 2016 - Part E-0781
My miles per gallon went up 1.6 mpg.

Michael Powers
North Falmouth, Massachusetts
Monday, May 9, 2016 - Part E-0781
Great filter!

Hampton, Minnesota
Tuesday, March 15, 2016 - Part E-0781
Well packed, fit well. good price. Fast shipping.

Kirk Mitchell
Red Bluff, California
Wednesday, January 20, 2016 - Part E-0781
Fits perfect in my 2006 GMC diesel.

Robert Thomson
Glen Mills. Pennsylvania
Tuesday, July 28, 2015 - Part E-0781
I really love my replacement air filter very happy with it.

Andrew Knepp
Eldred, Pennsylvania
Saturday, April 25, 2015 - Part E-0781
Helped turbo lag, low end torque and 2 miles per gallon.

L. Vincent Pietrocci
Shingletown, California