UNI FILTER Air Filter, NU-4149ST, Honda CRF450L/CRF450X/CRF450RL

Air Filter - Honda

The UNI FILTER Air Filter NU-4149ST is designed for the listed Honda CRF450L, CRF450X and CRF450RL applications. Its two-stage design comes apart for thorough cleaning and is intended to promote maximum airflow while stopping dirt.

Clean the filter with grease-cutting dishwashing detergent, then oil and reuse it. The filter fits in the stock airbox in the same manner as the OEM filter. It is made in the USA.

Distributor part number: NU-4149ST. Manufacturer part number: NU-4149ST. Vehicle fitment includes the 2019 Honda CRF450L; 2020, 2022, 2023, 2024 and 2025 Honda CRF450X; and 2021, 2022, 2024 and 2026 Honda CRF450RL.

Features:

• Two-stage design: Comes apart for maximum airflow and thorough cleaning.
• Reusable construction: Clean with grease-cutting dishwashing detergent, then oil and reuse.
• Airflow and filtration: Designed for airflow, dirt stopping and overall performance.
• OEM airbox fit: Fits in the stock airbox like the OEM filter.
• Vehicle fitment: Fits the listed 2019 Honda CRF450L, 2020–2025 Honda CRF450X and 2021–2026 Honda CRF450RL applications.
• Made in the USA.

Fitment:
2019 Honda CRF450L
2019 Honda CRF450X
2020 Honda CRF450L
2020 Honda CRF450X
2021 Honda CRF450RL
2021 Honda CRF450X
2022 Honda CRF450RL
2022 Honda CRF450X
2023 Honda CRF450RL
2023 Honda CRF450X
2024 Honda CRF450RL
2024 Honda CRF450X
2025 Honda CRF450RL
2025 Honda CRF450X
2026 Honda CRF450RL
2026 Honda CRF450X