Vzduchový filtr HiFlo Yamaha YZ 450 2018

Overview

This Hiflofiltro air filter has been specifically engineered for off-road Yamaha models including the YZ 450 F and WR 450 F from 2018 onwards. It replaces the original equipment air filter and installs directly into the stock airbox with no modification required. The premium powerflow filter media is designed to deliver consistent, clean airflow while helping to protect the engine from dust, dirt and airborne contaminants. This supports smooth throttle response and dependable performance in trail and competition environments.

Motorcycle fitment

This air filter is suitable for the following Yamaha models:

• Yamaha YZ 450 FJ Air Filter 2018 (all regions)
• Yamaha YZ 450 FK Air Filter 2019 (all regions)
• Yamaha YZ 250 FK Air Filter 2019 (all regions)
• Yamaha YZ 250 FL Air Filter 2020 (all regions)
• Yamaha WR 450 FK Air Filter 2019 (all regions)
• Yamaha WR 450 FL Air Filter 2020 (all regions)
• Yamaha YZ 450 FL Air Filter 2020 (all regions)
• Yamaha YZ 450 FM Air Filter 2021 (all regions)
• Yamaha YZ 450 FN Air Filter 2022 (all regions)
• Yamaha YZ 250 F Air Filter 2021 (all regions)

If your motorcycle is listed above, this filter is the correct direct replacement for the original Yamaha 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 off-road riding and everyday use
• 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

• Remove the seat and required body panels to access the airbox
• 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/foam air filter and should not be oiled or washed unless specified by the manufacturer
• Inspect periodically, especially if riding in dusty conditions
• Replace at the next service interval if the element shows significant wear or contamination

Technical summary

• Brand: Hiflofiltro
• Wemoto part number: AA1186
• Hiflofiltro reference: HFF4030
• OEM equivalent: Yamaha YZ/WR 250/450 off-road air filter element

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 motorcycle experience