28-4240 K&N Auto Racing Filter
| Air Filter Shape | Round |
| Height | 5 in (127 mm) |
| Package Contents | 1 Air Filter |
| Package Quantity | 1 |
| Washable | Yes |
| Product Style | Unique Air Filters |
| Filter Material | Cotton Gauze |
| Flanges | None |
| Top Style | Open |
| Outside Diameter | 9 in (229 mm) |
| Inside Diameter | 8 in (203 mm) |
| Weight | 1.1 lb (0.5 kg) |
| Product Box Height | 7.75 in (197 mm) |
| Product Box Length | 10.38 in (264 mm) |
| Product Box Width | 10.38 in (264 mm) |
| Inner Wire | No |
| Style | Round |
| Warranty | 1 Year Limited |
Warning: Cancer & Reproductive Harm – P65Warnings.ca.gov
K&N Products
Unmatched Performance
50 years of improving vehicle performance.
Cold Air Intakes
Custom-engineered tubes deliver better airflow than you get with a stock intake. More air means better performance.
Air Filters
Using cotton gauze instead of typical folded paper, our filters increase airflow while providing excellent engine protection.
Cabin Air Filters
Helps capture most mold, mildew, fungus, spores, bacteria, germs, pollen and allergens, and helps to rid the air of unpleasant odors.
Oil Filters
K&N oil filters use a high flow filter media that allows for high flow rates while providing outstanding engine protection.
Speed Shop
From custom air filters to fuel pumps and carb accessories, the K&N Speed Shop has been assembled to help your vehicle run at peak performance.
Home Air Filters
New washable and reusable air conditioning and furnace filters for your home. From the industry leader in washable automotive filtration.
FUEL FILTERS
CLEANING KITS
HD DIESEL
POWERSPORTS
Our Story
Why K&N?
We're #1 for a reason. Since 1969 every product we've created delivers high-performance, unmatched quality and longevity
