RD-4900 K&N Dual Flange Oval Universal Air Filter
|Air Filter Material||Cotton Gauze|
|Flange Center to Center||2.687 in (68 mm)|
|Flange Inside Diameter||1.75 in (44 mm)|
|Flange Length||0.75 in (19 mm)|
|Height||6.25 in (159 mm)|
|Outside Length||9 in (229 mm)|
|Outside Width||5.5 in (140 mm)|
|Air Filter Shape||Oval|
|Package Contents||1 Air Filter|
|Warranty||1 Year Limited|
|Product Style||Dual Flange Oval Universal Air Filter|
|Base Outside Length||9 in (229 mm)|
|Base Outside Width||5.5 in (140 mm)|
|Top Outside Length||9 in (229 mm)|
|Top Outside Width||5.5 in (140 mm)|
|Weight||2 lb (0.9 kg)|
|Filter Re-Oiling Amount||1.04 oz (31 ml)|
|Product Box Height||7.75 in (197 mm)|
|Product Box Length||9.38 in (238 mm)|
|Product Box Width||9.38 in (238 mm)|
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.
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.
K&N oil filters use a high flow filter media that allows for high flow rates while providing outstanding engine protection.
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.
K&N is the home of the original red oiled air filter. In the early 1960s, two motorcycle racers, Ken Johnson and Norm McDonald (K&N), developed a ground-breaking new idea for an oiled air filter. Five decades later, K&N® is still innovating industry-leading filtration technology, and offers outstanding protection for everything from top-fuel dragsters to commuter vehicles across the globe. Thank you for helping us reach 50 years in business!