KAX HEPA Cabin Air Filter 2-Pack for Ram, Jeep, Mazda — CF11671, 5-Layer Activated Carbon, OEM Fit

If you drive a compatible Ram 1500/2500/3500/4500/5500, Jeep Wagoneer or Grand Wagoneer series, or a Mazda CX-7 from the listed years, the KAX CF11671 fits behind the glove box and is sized to meet OEM form and function while offering enhanced filtration. This replacement set arrives boxed (two filters) and is intended as a straightforward service part for cabin-air maintenance at regular intervals.

Which vehicles and fit positions does this filter serve?

The KAX CF11671 is manufactured to match the cabin filter housing behind the glove box for specific model years. Always confirm fit against your vehicle’s manufacturer part number and the listed years before purchase. If your vehicle falls within the stated years and models, this is a direct-fit replacement designed for the factory location.

• Ram: 1500 (2016–2026), 2500 (2016–2025), 1500 Classic (2019–2024), 3500 (2016–2025), 4500 (2016–2023, 2025), 5500 (2016–2025)
• Jeep: Wagoneer and Grand Wagoneer (2022–2025), Wagoneer L and Grand Wagoneer L (2023–2025)
• Mazda: CX-7 (2007–2012)
• Installation location: behind the glove box; rectangular filter: 8.5" x 7.7" x 1"

How does the 5-layer HEPA-style construction improve cabin air?

The filter combines non-woven high-efficiency media with activated carbon and an electrostatic long-fiber layer to physically trap particles and adsorb odors and gaseous impurities. The multi-layer design increases surface area and dust-holding capacity while maintaining airflow, helping HVAC systems run efficiently without excessive restriction.

• Five-layer structure including activated carbon and long-fiber electrostatic cotton
• Engineered for up to 99.9% particle capture efficiency under rated conditions
• Higher dust-holding area than flat materials to reduce pressure drop

When should I change the KAX CF11671 cabin air filter?

KAX recommends replacing the cabin air filter every 12 months or every 12,000 miles, or follow the interval specified in your vehicle’s owner manual. Replacement frequency depends on local driving conditions like urban pollution, pollen seasons, or dusty roads, which may require more frequent changes.

• Suggested interval: every 12 months or 12,000 miles
• Replace sooner after heavy pollution exposure, construction areas, or high pollen seasons
• Not washable or reusable — dispose and install a new filter

Does this filter affect my vehicle’s heating and cooling performance?

The long-fiber electrostatic cotton layer creates more gaps for airflow while holding more dust compared with some flat media, which helps maintain HVAC efficiency as the filter loads. Proper fit and correct orientation are important to avoid airflow restrictions and to preserve heater and A/C performance.

• Designed to balance filtration with airflow for efficient HVAC operation
• Correct fit behind the glove box prevents bypass and preserves system performance
• Sold as a boxed two-pack for scheduled dual replacements or spare on hand

Who is this for: The KAX CF11671 2-pack suits owners and technicians who need a direct-fit cabin filter replacement for the listed Ram, Jeep, and Mazda vehicles and want upgraded particulate and odor adsorption compared with standard paper filters. Choose this kit if you prioritize finer particle capture, straightforward installation behind the glove box, and following regular maintenance intervals to keep your vehicle’s interior air and HVAC system functioning well.