Dacall Cabin Air Filter Set for Freightliner Cascadia & Century Class — 4-Pack OE-Fit with Activated Carbon

If you operate a Freightliner Cascadia, Century Class, Columbia, Coronado, 122SD or MT45, these Dacall cabin air filters are built to match OEM dimensions and restore in-cab air quality quickly. The set replaces multiple part numbers (including PA4857, BOA91559 and P60942) and uses a multi-layer media with activated carbon to reduce odors while capturing fine particulates.

How does this filter set improve in-cab air quality?

The Dacall design combines microfiber, HEPA-like layers and coconut-shell activated carbon to trap particulate matter and adsorb odors and gaseous contaminants. That layered approach helps reduce visible dust and common smells from diesel, road grime or vehicle interiors.

• Four-layer media captures >99% of dust-sized particles
• Activated carbon reduces odors and volatile compounds
• Microfiber layer captures larger debris and extends service life

Will these filters fit my Freightliner model and how easy are they to install?

These filters are manufactured to OE-equivalent dimensions and list fitment for Freightliner Cascadia (2008–2023), Century Class (1996–2011), Columbia (2000–2013), Coronado (2001–2016), 122SD (2013–2017) and MT45 (2017–2022). Installation is straightforward and designed for a 5–8 minute swap using existing housings — no cutting or modification required.

• Exact-size replacements for direct drop-in installation
• Typical swap time: under 10 minutes per filter
• Check part numbers against your vehicle before purchase for confirmation

What maintenance interval should I follow and what benefits will I see?

For consistent cabin comfort and HVAC performance, change the cabin air filter about every 12,000 miles or at least once a year depending on driving conditions. Regular replacement helps maintain blower efficiency, reduces allergens inside the cab and can prevent odor buildup from trapped contaminants.

• Recommended change: annually or ~12,000 miles
• Improves HVAC airflow and reduces strain on blower motor
• Helps keep cab interior cleaner and fresher between deep cleans

Which part numbers does this Dacall set replace and why is that useful?

This 4-piece kit is listed as compatible with multiple common OEM and aftermarket part numbers such as BO91559, BOA91559, PA4857, P609422 and AF26235. Matching these numbers simplifies ordering and avoids compatibility surprises when servicing a fleet with mixed parts history.

• Covers a wide range of equivalent part numbers for easy cross-reference
• Reduces downtime by ensuring correct fitment for many Freightliner models
• Ideal for fleet maintenance stores and owner-operators replacing multiple filters

Who this is for: The Dacall Cabin Air Filter Replacement Set is suited to truck owners, fleet managers and technicians who need a reliable, OE-fit replacement for Freightliner heavy-duty cabs dating from the late 1990s through the early 2020s. Choose this kit if you want a straightforward, affordable swap that restores cabin air filtration, controls common odors and keeps HVAC systems operating efficiently without dealership service.