Hengst E3974LI Cabin Air Filter

Cabin Air Filtration for Clean Interior Air

The Hengst HEZ Cabin Air Filter E3974LI is a particulate cabin air filter built for vehicles that use this application across multiple Chrysler, Dodge, Jeep, and Ram models. It is designed to filter incoming air before it enters the passenger compartment, helping maintain cleaner HVAC airflow in daily driving.

Compatible With 2007-2020 Dodge Journey, Jeep Compass, Jeep Patriot, Ram 1500, Chrysler 200, Dodge Avenger, Dodge Caliber, and Chrysler Sebring applications, this filter uses particulate media for interior air filtration. The HEZ Cabin Air Filter line focuses on OE-style replacement fitment and straightforward service replacement.

Key Features

• Particulate filter media for cabin air filtration
• Hengst HEZ Cabin Air Filter product line
• Direct replacement format for HVAC filter service
• Part number E3974LI for ordering and fitment lookup
• Cross-reference: AMS Automotive 4313

Product Details

Hengst E3974LI is a cabin air filter for HVAC systems that use particulate media. It is intended for passenger-compartment air filtration in vehicles such as the Dodge Journey, Jeep Compass, and Jeep Patriot, along with other listed Chrysler, Dodge, and Ram applications. The HEZ Cabin Air Filter line is positioned as a replacement filter solution for routine HVAC maintenance, and this part number E3974LI also cross-references select OE-style numbers for the same application.

Common Issues This Filter Can Address

• Reduced cabin airflow from a loaded or restricted filter
• Dust and road debris entering the HVAC intake path
• Visible buildup in the cabin air filtration system
• Musty or stale interior air caused by overdue filter service
• Uneven HVAC performance from a clogged particulate filter

Installation Notes and Tips

Replace the cabin air filter according to the vehicle service interval or sooner if airflow drops or the filter is visibly dirty. Confirm the vehicle year, make, and model before ordering, since fitment varies by application. For best results, inspect the HVAC filter housing and remove any debris before installing the new filter.

Quality Assurance

Hengst manufactures filtration products for automotive HVAC service, and the HEZ Cabin Air Filter line is built for replacement use in the listed applications. Verify fitment against the vehicle’s model year and HVAC filter location before installation.