Premium Guard PC5478X Cabin Air Filter

Cabin Air Filtration for Under-Hood Applications

Premium Guard PUREFLOW PC5478X is a cabin air filter for select Ford, Mazda, and Mercury vehicles with under-hood filter placement. It is built with antibacterial filter media to help maintain cleaner air entering the HVAC system while supporting routine cabin air service. This part number PC5478X is a direct-fit option for 2001-2006 Ford Escape, 2001-2006 Mazda Tribute, and 2005-2006 Mercury Mariner applications.

Key Features

• Antibacterial filter media for cabin air filtration service
• Under-hood mounting location for the listed applications
• OE-style fitment for select Ford Escape, Mazda Tribute, and Mercury Mariner models
• Dimensions: 10.68 in. length, 6.38 in. width, 1.14 in. thickness
• Lightweight design at 0.18 lb for straightforward handling during replacement
• Premium Guard PUREFLOW product line for cabin air filter replacement

Product Details

Premium Guard PUREFLOW PC5478X is a cabin air filter engineered around the dimensions and fitment requirements of the listed vehicles. The antibacterial media is specified to support HVAC filtration by helping capture airborne contaminants before they enter the passenger compartment. For buyers searching for a cabin air filter for 2001-2006 Ford Escape under hood, a Mazda Tribute cabin air filter replacement, or a Mercury Mariner cabin air filter under hood, this part number PC5478X matches the application data provided.

The PUREFLOW line identifies Premium Guard’s cabin air filter offering for vehicles that use an under-hood filter location. This makes PC5478X a practical service part for maintaining the HVAC intake path on the covered Ford Escape, Mazda Tribute, and Mercury Mariner platforms.

This part cross-references OE-style numbers such as 1L8Z-184D77-AA and 0000-8M-G01 for the same application.

What It Helps Address

• Dust and road debris entering the HVAC intake
• Pollen and other airborne particles affecting cabin air quality
• Reduced airflow caused by a loaded cabin air filter
• Odors and stale air buildup from an overdue filter service interval
• HVAC performance issues related to restricted intake filtration

Installation Notes

Install PC5478X at the under-hood filter location specified for the vehicle. Verify the existing filter dimensions and housing layout before replacement, and confirm the part number against the vehicle’s year, make, and model. For 2001-2006 Ford Escape, 2001-2006 Mazda Tribute, and 2005-2006 Mercury Mariner applications, match the filter orientation to the housing before closing the cover.

Quality Assurance

Premium Guard PUREFLOW PC5478X is built to the published size and media specifications for the listed applications. Fitment data covers 2001-2006 Ford Escape, 2001-2006 Mazda Tribute, and 2005-2006 Mercury Mariner vehicles with under-hood cabin air filter placement.