Overview
This Hiflofiltro air filter has been designed for a range of Honda 400cc motorcycles, including CBR400, CB400 and VFR400 models listed below. It replaces the original equipment air filter and installs directly into the stock airbox with no modification required. The premium powerflow filter media is engineered to deliver consistent, clean airflow while helping to protect the engine from dust, dirt and airborne contaminants. This helps support smooth throttle response and dependable performance for everyday riding and longer journeys.
Motorcycle fitment
This air filter is suitable for the following Honda models:
- Honda CBR 400 RR (NC23) 1987–1988 (all regions)
- Honda CBR 400 RR (NC29) 1990–1994 (all regions)
- Honda CB 400 Super Four (NC31) 1992–1998 (all regions)
- Honda CB 400 Super Four (NC39) 1999–2006 (all regions)
- Honda VFR 400 R (NC21 / NC24) 1986–1989 (all regions)
- Honda VFR 400 R (NC30) 1989–1994 (all regions)
If your motorcycle is listed above, this filter is the correct direct replacement for the original Honda air filter. (wemoto.com)
Why choose Hiflofiltro
- Direct replacement design with accurate dimensions for a reliable seal
- Premium powerflow media engineered for consistent filtration and airflow
- Helps maintain smooth engine response and dependable performance
- Trusted aftermarket brand used by riders and professional workshops worldwide
Benefits on the road
- Supports smooth throttle response and stable power delivery
- Protects internal engine components from dust and airborne contaminants
- Dependable performance for commuting and everyday riding
- Simple replacement keeps your airbox functioning as designed
When to replace your air filter
- At the service interval specified in your owner’s manual
- If the filter element appears heavily soiled or discoloured
- When throttle response feels less sharp than normal
- After extended riding in dusty or wet conditions
Installation notes
- Access the airbox following the Honda service manual for your model
- Clean the airbox interior with a lint-free cloth before fitting the new filter
- Ensure the sealing edge sits evenly within the airbox frame
- Reassemble all components carefully before riding
- If you are unsure about the fitting process, having a professional technician install the filter can help ensure everything is set up correctly
Care and maintenance
- This is a paper air filter and should not be oiled or washed
- Inspect periodically if the motorcycle is used year-round
- Replace at the next service interval if the element shows significant wear or contamination
Technical summary
- Brand: Hiflofiltro
- Wemoto part number: AF3422
- Hiflofiltro reference: AF3422
- OEM equivalent: Honda air filter element for listed models
Why buy from Wemoto
- Fast dispatch with clear returns support
- Comprehensive range of service parts to complete your job in one order
- Customer service backed by motorc