K&N Engineering HA-3021 High-Flow Air Filter for Honda CRF300L

The K&N High-Flow Air Filter for Motorcycles is engineered to increase airflow for improved horsepower, throttle response, and acceleration while providing increased engine protection. Built with premium oiled cotton gauze, this washable and reusable air filter is designed for long-lasting performance, a precision OEM-style fit, and durable construction to keep your motorcycle performing ride after ride. The K&N High-Flow Air Filter for Motorcycles is engineered to increase airflow for improved horsepower, throttle response, and acceleration while providing increased engine protection. Associated products: 99-5000 Filter Care Service Kit Aerosol

• PRECISION OEM-STYLE FIT: Made with application specific seamless sealing beads and custom seals for easy installation (Where Applicable).
• Designed to provide increased horsepower and acceleration specifically developed for Off-Road, Motocross, ATVs, UTVs and Side by Sides
• Fits directly into OEM air box with application specific sealing bead ensuring a precise fit
• Pleated media provides a large filtration area offering long service intervals
• No fuel management modifications are required to obtain increased performance
• Multiple layers of woven cotton gauze media offers excellent filtration
• Washable & reusable, most are pre-oiled and ready to ride
• One Year Limited Warranty

The K&N Engineering HA-3021 High-Flow Air Filter is designed as a direct-fit replacement for select Honda CRF300L motorcycles. Its high-flow media supports improved airflow, throttle response, horsepower, and acceleration while helping protect the engine from dirt and debris. The filter installs directly into the original equipment airbox for a precise, application-specific fit.

Built with multiple layers of washable and reusable oiled cotton gauze, the HA-3021 provides a large filtration area and supports extended service intervals. Its pleated design helps maintain airflow, while the custom sealing bead promotes reliable sealing around the airbox. No fuel-management modifications are required to obtain the filter's intended performance benefits. The filter is generally pre-oiled and ready for installation, and it is backed by a one-year limited warranty. K&N filter care products, including the 99-5000 Filter Care Service Kit Aerosol, are available separately for cleaning and maintenance.

Fitment includes 2021-2023 Honda CRF300L models, including ABS, Rally, and Rally ABS versions where listed. Confirm the motorcycle's year, model, and original airbox configuration before ordering. This product is intended for powersports applications and is supplied as one reusable replacement air filter.

What's Included

• One K&N Engineering HA-3021 high-flow air filter
• Installation-ready reusable filter element
• One-year limited warranty coverage

Key Product Specifications

• Brand: K&N Engineering
• Part Number: HA-3021
• Application: Powersports motorcycle air filter
• Filter Type: High-flow drop-in replacement
• Filter Media: Oiled cotton gauze
• Maintenance: Washable and reusable
• Installation: Direct fit in the OEM airbox
• Vehicle Fitment: Select 2021-2023 Honda CRF300L models

Features:

• Precision OEM-style fit: Application-specific sealing beads and custom seals support straightforward installation and dependable airbox sealing.
• High-flow performance: Designed to improve airflow for responsive throttle operation, horsepower, and acceleration.
• Broad powersports application: Developed for off-road motorcycles, motocross bikes, ATVs, UTVs, and side-by-sides.
• Washable and reusable construction: Oiled cotton gauze media can be cleaned and serviced for long-term use.

Fitments:
2021 Honda CRF300L Base
2021 Honda CRF300L ABS Base
2021 Honda CRF300L Rally Base
2021 Honda CRF300L Rally ABS Base
2022 Honda CRF300L Base
2022 Honda CRF300L ABS Base
2022 Honda CRF300L Rally Base
2022 Honda CRF300L Rally ABS Base
2023 Honda CRF300L Base
2023 Honda CRF300L ABS Base
2023 Honda CRF300L Rally Base
2023 Honda CRF300L Rally ABS Base
2024 Honda CRF300L Base
2024 Honda CRF300L ABS Base
2024 Honda CRF300L Rally Base
2024 Honda CRF300L Rally ABS Base
2025 Honda CRF300L ABS Base
2025 Honda CRF300L Rally ABS Base
2025 Honda CRF300LS Base

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: powersports
Epa: N/A
Regular Stock: t
Units Per Sku: 1