Uni Filter NU-1418ST Two-Stage Air Filter for KTM

The Uni Filter NU-1418ST is a high-performance replacement air filter engineered specifically for KTM motorcycles. This competition-grade filter delivers unsurpassed airflow and dirt-stopping performance while fitting perfectly in your stock airbox exactly like the OEM filter.

Two-Stage Filter Technology:

• Unique dual-layer foam design separates for maximum airflow and thorough cleaning
• Each foam layer can be serviced independently for extended filter life
• Superior filtration efficiency without sacrificing engine performance

Ultra Seal Base Design:

• Thin, tear-resistant base material ensures long-lasting durability
• Built-in grease groove on sealing surface prevents dirt bypass
• Creates a perfect seal against the airbox for unfiltered air protection

Easy Maintenance:

• Cleans easily with standard grease-cutting dishwashing detergent
• Reusable design saves money over disposable filters
• Simple service routine: clean, oil, and reinstall indefinitely

Trusted by factory race teams including Yamaha, Kawasaki, and Suzuki off-road programs. Made in the U.S.A., this is the best-selling replacement air filter for competition motorcycles and ATVs.