Twin Air PowerFlow Air Filter Kit 154220C for KTM 500 EXC-F and Husqvarna FE 501

2 – STROKES: The best filter in the world can’t do its job if there are leaks in the seal of the airbox. That’s why Twin Air provides a complete line of products to ensure a leak-proof, fool proof fit. Twin Air’s PowerFlow kit comes with a rigid, lightweight, billet aluminum cage that provides a tight seal to the airbox and replaces your flimsy plastic stock cage. 4 – STROKES: Twin Air PowerFlow kit for 4-Stroke models: Replace your air-restricting stock backfire screen with our New PowerFlow kit. The kit includes a rigid, lightweight, billet aluminum cage with a special backfire-resistant layer of foam laminated to the inside of the filter.

The Twin Air PowerFlow Air Filter Kit, part number 154220C, is designed to improve airbox sealing and provide dependable filtration for select KTM and Husqvarna off-road motorcycles. The kit fits 2017–2022 KTM 500 EXC-F models and 2018–2022 Husqvarna FE 501 models, helping replace the weak sealing performance of a standard plastic filter cage with a rigid, lightweight billet aluminum cage.

For 2-stroke applications, the PowerFlow cage is engineered to create a tight, leak-resistant connection between the air filter and airbox. For compatible 4-stroke models, the kit replaces the restrictive stock backfire screen with a performance-oriented design that includes a backfire-resistant foam layer laminated to the inside of the filter. This construction supports reliable airflow while helping protect against airbox leaks and unfiltered air entering the engine.

Manufactured by Twin Air, this kit is built for riders who need a secure, precise filter fit in demanding off-road conditions. The PowerFlow design helps the air filter perform as intended by maintaining consistent sealing around the airbox opening. Verify your motorcycle model and year before installation to ensure proper fitment. Manufacturer part number: 154220C. Vendor part number: 154220C.

Features:

• Application: Air filter and cage kit for select KTM 500 EXC-F and Husqvarna FE 501 motorcycles
• Fitment: 2017–2022 KTM 500 EXC-F and 2018–2022 Husqvarna FE 501 models
• Cage Construction: Rigid, lightweight billet aluminum replacement for the stock plastic cage
• Sealing: Designed to provide a tight, leak-resistant connection to the airbox
• Backfire Protection: Includes a backfire-resistant foam layer for compatible 4-stroke applications
• Brand: Twin Air
• Manufacturer Part Number: 154220C
• Vendor Part Number: 154220C

Fitment:
2017 Husqvarna FE 501
2017 KTM 500 EXC-F
2018 Husqvarna FE 501
2018 KTM 500 EXC-F
2019 Husqvarna FE 501
2019 KTM 500 EXC-F
2020 Husqvarna FE 501
2020 KTM 500 EXC-F
2021 Husqvarna FE 501
2021 KTM 500 EXC-F
2022 Husqvarna FE 501
2022 KTM 500 EXC-F