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38-2031S K&N Replacement Air Filter-HDT
Backorder item(s) will be shipped separately and may take additional 2 weeks for delivery
Flow Direction | Standard |
Height | 12.75 in (324 mm) |
Filter Material | Non-woven Synthetic |
Inner Wire | Yes |
Inside Diameter | 5.25 in (133 mm) |
Outside Diameter | 9.25 in (235 mm) |
Top Material | None |
Top Style | Rubber |
Warranty | 36 Months - 300,000 Miles |
Washable | Yes |
Air Filter Shape | Round Straight |
Package Contents | 1 Air Filter |
Package Quantity | 1 |
Flanges | None |
Product Style | Heavy Duty Replacement Filter Round Straight |
Weight | 6.9 lb (3.1 kg) |
Product Box Height | 11.13 in (283 mm) |
Product Box Length | 20.5 in (521 mm) |
Product Box Width | 10.69 in (271 mm) |
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Advanced Moderate Easy
Screwdriver
5-10 Minutes
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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.

FUEL FILTERS

CLEANING KITS

HD DIESEL

POWERSPORTS
OUR STORY
WHY K&N?
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!
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