OIFILLIO Cabin Air Filter 2-Pack for Freightliner Cascadia & Heavy Trucks — Activated-Carbon, Direct-Fit Replacement

OIFILLIO 2-pack cabin air filters are replacement activated-carbon filters engineered to fit Freightliner Cascadia, Columbia, Coronado, Century Class and 122SD trucks, delivering cleaner, fresher in-cab air for drivers.

These OIFILLIO filters use coconut-shell activated carbon media and multilayer filtration to trap dust, road debris and common odors, while matching the fit and mounting points of common OEM part numbers. Designed as direct-fit replacements for a wide range of Freightliner heavy trucks, the set includes two filters so you can change both sides or keep a spare on the truck. The filters are sold as a ready-to-install, tool-free upgrade that helps maintain HVAC performance and cabin comfort during long hauls.

How do these filters improve in-cab air quality?

The OIFILLIO filters combine a pleated particulate layer with an activated-carbon core to reduce airborne particles and many odor-causing compounds. They capture road dust, pollen and larger particulates while the carbon layer adsorbs common exhaust and cab odors. This dual-action design helps keep vents and blower motors cleaner over time.

• Multilayer pleated media for particle capture
• Coconut-shell activated carbon for odor adsorption
• Reduces particulates that can deposit on HVAC components
• Helps maintain airflow and heater/AC efficiency

Which trucks and OEM parts are these filters compatible with?

These filters are built to match the fit and dimensions used in many Freightliner models: Cascadia (2008–2023), Century Class (1996–2011), Columbia (2000–2016), Coronado (2000–2016) and 122SD (2013–2016). They are offered as replacements for several commonly referenced part numbers, making selection straightforward for fleet mechanics and owner-operators.

• Compatible models: Cascadia, Century Class, Columbia, Coronado, 122SD
• Replaces: BO91559, BOA91559, 91559, ABP N10G 91559, PA4857
• Also replaces: P609422, AF26235, CAF24003, 24318, PA10181
• Sold as a 2-piece pack for convenience

How simple is the installation and maintenance?

Installation is designed to be quick and straightforward: most users can swap the filter in about 10 minutes without tools or modifications. The filter's form factor aligns with the OEM housing to ensure a secure seal and correct airflow direction. Routine replacement intervals depend on operating conditions, but keeping a spare in the cab simplifies scheduled maintenance.

• Typical install time: ~10 minutes, no cutting or modifications
• Direct-fit shape and sealed edges for proper airflow
• Sold as two filters—use now and keep one spare
• Recommended inspection with regular service intervals

What performance features matter for long-haul drivers?

Long-haul operation exposes HVAC systems to dust, diesel particulates and odors from idling or urban traffic. The OIFILLIO filters are optimized for those conditions with durable pleats that resist collapse and an activated-carbon layer that helps reduce lingering cab smells. A well-sealed filter also reduces the chance of debris bypassing the media and reaching the blower motor.

• Durable pleats resist moisture and deformation
• Carbon layer targets common diesel and road odors
• Improved cabin comfort during extended drives
• Helps protect HVAC components from particulate wear

Who is this for: The OIFILLIO 2-pack cabin air filters suit owner-operators, fleet maintenance teams and independent mechanics who need direct-fit replacements for Freightliner Cascadia, Century Class, Columbia, Coronado and 122SD models. Choose these filters if you want a cost-effective activated-carbon upgrade that is easy to install, matches common OEM part numbers, and provides a spare for routine maintenance without custom modification.