BMC FM645/04 washable motorcycle air filter – straight-on filter-face view
BMC FM645/04 washable motorcycle air filter – low front-edge view
BMC FM645/04 washable motorcycle air filter – side-profile view
BMC FM645/04 washable motorcycle air filter – alternate straight-on face crop
BMC FM645/04 washable motorcycle air filter – alternate low-edge view
BMC FM645/04 washable motorcycle air filter – alternate side-angle view
Special Order BMC Filter

BMC FM645/04 Air Filter - Honda Cbr 250 R & Cbr 300 R

Part No. FM645/04
Application Honda CBR 250 R, CBR 300 R, CB 300 F
Order Type Inquiry Required

Request This BMC Filter

This BMC filter may be available by special order or fitment inquiry. Contact European Performance Filters to confirm fitment, availability, lead time, pricing, and ordering requirements before purchasing.

Status Special order / availability confirmation required
Lead Time Contact EPF for current lead time
Fitment Confirm before ordering
Request Special Order Help
Special order stipulations

Special-order items may require payment up front and are typically not cancelable or returnable once ordered from BMC. Lead times can vary by BMC availability, production status, and import timing. Contact EPF before ordering to confirm fitment, availability, lead time, pricing, and ordering requirements.

GENUINE BMC WASHABLE REPLACEMENT AIR FILTER

BMC Air Filter FM645/04

The BMC FM645/04 is a washable, reusable panel motorcycle air filter for Honda Cbr 250 R, Cbr 300 R, Cb 300 F. It is available by special order; confirm the exact listed model year and factory airbox before ordering.

OEM-Style Fitment

Designed to replace the factory air filter on compatible applications where BMC FM645/04 is specified.

Washable & Reusable

This BMC filter can be cleaned and re-oiled with the proper BMC cleaning kit instead of being discarded like a standard paper filter.

Performance Filtration

BMC’s oiled cotton gauze design supports improved airflow while maintaining filtration for performance-focused applications.

Vehicle Fitment

Application Guide for BMC FM645/04

Use the table below to help confirm whether this BMC air filter matches your vehicle, engine, and application.

Year Range Make Model Engine Trim / Notes BMC Part No. OEM Cross Reference
2011–2013 Honda Cbr 250 R Model-specific motorcycle engine Confirm exact model year, market, and factory airbox FM645/04 HONDA 17211KYJ900
2015–2022 Honda Cbr 300 R Model-specific motorcycle engine Confirm exact model year, market, and factory airbox FM645/04 HONDA 17211KYJ900
2015–2018 Honda Cb 300 F Model-specific motorcycle engine Confirm exact model year, market, and factory airbox FM645/04 HONDA 17211KYJ900
Fitment note: This fitment table is based on BMC's published application data for FM645/04. Confirm the exact model, year, market, factory airbox, and OEM reference before ordering.

Product Specifications & Cross References

Platform Honda motorcycle applications
Engine Notes Fits the listed model-specific motorcycle applications where BMC FM645/04 or HONDA 17211KYJ900 is specified. Confirm the exact model, year, market, and factory airbox.
BMC Part Number FM645/04
Filter Type Panel
Filter Dimensions 117 × 187 mm
GTIN / EAN 8055732591908
Package Contents 1 Air Filter
OEM Cross References HONDA 17211KYJ900

Why Choose BMC?

BMC replacement filters are built for drivers and riders who want reusable performance filtration while keeping an OEM-style airbox fitment.

The FM645/04 is designed for compatible applications where this BMC part number is specified. It is a smart choice for enthusiasts, shops, and installers looking for a washable replacement filter without converting to a full intake system.

Cleaning & Maintenance

BMC filters are washable and reusable when serviced correctly. Use the proper BMC cleaning kit, allow the filter to dry fully, and avoid over-oiling before reinstalling it.

Shop BMC Cleaning Kit Read Cleaning Guide Installation Guide
Fitment Support

Not Sure This Is the Correct BMC Filter?

Contact European Performance Filters before ordering. We can help verify the correct BMC part number using your vehicle details, model, engine, and production information.

Contact EPF for Fitment Help Shop Motorcycle BMC Filters
Product FAQ

BMC FM645/04 FAQ

Is BMC FM645/04 a direct replacement filter?

Yes. BMC FM645/04 is designed as an OEM-style replacement filter for compatible applications where this BMC part number is specified.

Does this BMC filter require tuning?

No tuning is typically required when BMC FM645/04 is installed as a direct replacement in the correct factory airbox. A motorcycle with additional intake, exhaust, fueling, or engine modifications should be evaluated as a complete setup.

Can this BMC filter be cleaned and reused?

BMC FM645/04 is washable and reusable. Service it with the proper BMC cleaning and re-oiling kit, allow it to dry fully before oiling, and avoid over-oiling before reinstallation.

How do I confirm this filter fits my vehicle?

BMC FM645/04 fits the applications listed in the fitment table. Match the exact model and year, then confirm the factory airbox and OEM reference HONDA 17211KYJ900.