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K&N 33-2478 Air Filter

Replacement Filters / Replacement Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5     23 Customer Reviews
33-2478
$57.99 USD
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Product Overview

  • Designed to increase horsepower
  • Washable, reusable, and engineered to last for the life of your vehicle
  • Designed to provide high airflow and exceptional filtration
  • Engineered to fit easily into your factory air box
  • 10-Year/Million Mile Limited Warranty
  • Only needs cleaning every 50,000 miles under normal highway driving conditions
  • Emissions legal in all 50 States
  • Will not void vehicle warranty
The K&N 33-2478 Air Filter fits some Nissan Altima, and Nissan Altima Sedan models. See vehicle applications link for details.
K&N® washable, reusable High-Flow Air Filters™ feature a state-of-the-art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Each performance air filter is reusable, engineered to last for the entire lifespan of your vehicle, and backed by K&N’s 10-Year/Million Mile Limited Warranty. K&N drop-in replacement filters are designed to install easily into your factory air box. Upgrade today and start enjoying superior airflow and superior performance from K&N’s most popular product!

[More Information on K&N Replacement Air Filters]
Air Filter ShapePanel
Height1 in (25 mm)
Package Contents1 Air Filter
Package Quantity1
WashableYes
Product StyleUnique Air Filters
Filter MaterialCotton Gauze
FlangesNone
Outside Length11.438 in (291 mm)
Outside Width11.375 in (289 mm)
Weight1.6 lb (0.7 kg)
Filter Re-Oiling Amount1.3 oz (39 ml)
Product Box Height14 in (356 mm)
Product Box Length12.25 in (311 mm)
Product Box Width1.75 in (44 mm)
Warranty1,000,000 Miles/10 Year
WARNING: Cancer and reproductive harm--www.P65warnings.ca.gov

K&N 33-2478 Air Filter Product Reviews

Wednesday, August 1, 2018 - Part 33-2478
Great product and arrived very quickly, but I never received my free hat like promised.

Mark Lindsey
Katy, Texas
Wednesday, February 28, 2018 - Part 33-2478
This is my 3rd factory replacement drop in filter for various vehicles. Fit, finish and quality have always been top notch with these filters. While I’ve never noticed much noticeable jump in power or gas mileage, these filters will definitely save you money in long run with being able to clean and reuse them.

Nathan Schuetz
Venedy, Illinois
Tuesday, February 27, 2018 - Part 33-2478
Fits great.

Tim Lenahan
Clovis, California