Is K&N Engineering Made in USA?
Last verified: April 2026 · Based on 5 verified products and public manufacturing evidence
Yes — Made in USA
K&N Engineering manufactures its products in the United States — specifically in Riverside, CA. Our verification team confirmed this through public manufacturing claims, factory records, and product listings.
Verification Confidence
Average confidence score across 5 verified products — scores ≥70% are shown on this site.
Manufacturing Details
- Made in
- Riverside, CA
- Headquarters
- Riverside, CA
- Founded
- 1969
About K&N Engineering
K&N Engineering invented the washable, reusable high-flow cotton air filter in 1969 and has been manufacturing performance air filtration products at its 400,000-square-foot Riverside, California headquarters ever since.
Heritage & History
K&N Engineering was founded in 1969 in Riverside, California by Ken Johnson and Norm McDonald, who developed the first washable, oiled cotton gauze air filter as an improvement over disposable paper filters. The original application was off-road motorcycles, where the reusable filter offered significant performance and cost advantages over paper elements that clogged quickly in dusty conditions.
The design proved equally valuable in cars and trucks, and K&N spent the following decades building an almost comprehensive catalog of drop-in replacement filters for virtually every production vehicle. The company's million-mile guarantee on its replacement air filters — reflecting the expected lifespan of a properly maintained washable filter — became a defining marketing claim and a genuine engineering achievement.
Made in Riverside, California
Approximately 90% of K&N products are manufactured at the company's 400,000-square-foot world headquarters in Riverside, California, with additional capacity in Grand Prairie, Texas. The Riverside facility is where K&N engineers design, test, and manufacture the replacement air filters and cold air intake systems that have made the brand the world's leading performance filtration company.
K&N's washable filters use layers of oiled cotton gauze pleated between aluminum mesh screens — a construction that flows more air than paper filters while trapping particles down to 10 microns. The filters are cleanable with K&N's own spray cleaner and oil kit, typically every 50,000 miles of normal driving. Cold air intake systems are also designed and built in Riverside, with dyno-tested performance gains documented for each vehicle application. For American performance enthusiasts, the K&N logo on an air intake is as recognizable as any brand in the hobby.
American-Made K&N Engineering Products
Frequently Asked Questions
Is K&N Engineering made in the USA?
Yes. K&N Engineering is made in the United States, manufactured in Riverside, CA.
Where is K&N Engineering manufactured?
K&N Engineering manufactures its products in Riverside, CA. The company is headquartered in Riverside, CA.
Which K&N Engineering products are made in the USA?
We carry 5 verified American-made K&N Engineering products across Automotive. Every listing is linked directly to Amazon with verified manufacturing evidence.