Replacement Filter for DUKE 125 DUKE 250 DUKE 390 SVARTPILEN 401 and VITPILEN 401 K&N (2017-2019), (2017-2019), (2017-2019), (2018-2019), (2018-2019)

Compatible models: Duke 125 17-21/Duke 390 17-20/Duke 250 17-19 Type: Genuine replacement type Weight [kilograms]: 0.3kg Material: Air filter: Cotton gauze Specifications: Standard

[🔧 Main Features & Recommended Points]

●Easy installation with OEM replacement type Designed to match the shape of the stock air cleaner box, allowing bolt-on installation. Even beginners can handle it easily and replace it without hassle.

●4-layer cotton gauze filter Uses a four-layer woven cotton gauze structure. Achieves both high dust collection capability and reduced intake resistance, ensuring reliable filtration performance while maintaining high airflow.

●Washable, reusable, and long-lasting Unlike disposable filters, it can be washed and re-oiled for repeated use, contributing to long-term cost savings. This reusable design is also a specialty of K&N.

●High-flow design improves throttle response Engineered to minimize intake restrictions, which helps improve throttle response and low-end torque buildup.

●Wide vehicle compatibility Especially compatible with the following models: ・KTM DUKE125 (2017–21) ・KTM DUKE250 (2017–19) ・KTM DUKE390 (2017–20) ・Husqvarna SVARTPILEN401 / VITPILEN401 (2018–19)

●High quality backed by a trusted brand K&N is renowned for its high-performance filter products, mainly based in the U.S., with extensive expertise. It has been widely adopted in motard and racing applications for many years.

●Lightweight with minimal weight increase Weighing only about 0.3kg, it keeps added weight to a minimum and preserves handling ease.

[🏍 Usage & Maintenance Tips]

- Installation: After removing the stock filter, install the KT-1217 in the same orientation and position. For proper sealing, clean the sealing surface and gasket area before installation.

- Initial break-in: After installing a new filter, perform light riding at low RPMs to allow the filter and airflow system to settle in, contributing to stable long-term performance.

- Cleaning interval: Depends on mileage and environment (dirt roads, rain, etc.), but regular inspection and cleaning are recommended. When dust and dirt become noticeable, wash with a dedicated cleaner and re-oil after drying.

- Watch out for air leaks: If the sealing area is loose or damaged, untreated air may enter and harm the engine. Always check for leaks after installation.

[✨ Summary]

The K&N KT-1217 Replacement Filter is a high-performance air filter designed for direct OEM replacement on models such as DUKE125, DUKE250, DUKE390, and SVARTPILEN401/VITPILEN401. Its 4-layer cotton gauze structure balances high dust collection with excellent airflow efficiency. The washable and reusable design offers outstanding long-term cost performance. By reducing intake resistance, it enhances engine response—making it a noticeable upgrade for riders who value riding feel. Its lightweight construction avoids affecting the bike’s weight balance, and the trusted K&N brand background further adds confidence. As a step toward high-performance air intake, this is a part that can be confidently recommended.