01- Liberty 3.7L Air Filter

The 01-Liberty 3.7L Air Filter (MPN 33-2233) is a reusable cotton panel-style air filter element engineered for 2001–2010 Jeep Liberty applications. As a vehicle modifier and working mechanic, you understand that engine breathing directly impacts both performance and longevity—and this filter addresses a critical maintenance point often overlooked during routine tune-ups. Built to replace OEM restrictive paper elements, this filter restores optimal airflow to your 3.7L engine while delivering superior filtration and extended service life compared to traditional disposable alternatives.

This reusable cotton construction provides multi-stage filtration efficiency without sacrificing flow rate—a balance that single-use paper filters cannot achieve. The panel design (measuring 11.438 x 8.5 inches with a 1.125-inch tall profile) maximizes surface area within the factory airbox, reducing turbulence and pressure drop across the intake tract. The red cotton media is washable and oil-coated to capture fine dust and particulates while maintaining low restriction, making it ideal for both street-driven Libertys and modified builds where increased intake volume matters. Its compact 1.12 lb weight integrates seamlessly into OEM mounting points without modification.

This filter excels for Jeep Liberty owners seeking cost-effective long-term maintenance and enthusiasts building mild to moderate intake upgrades. The reusable design eliminates recurring filter replacement expenses while reducing waste—a practical choice for weekend warriors and off-road users who demand reliability in variable conditions. Compatible across 2001–2010 Liberty model years, installation requires no modifications and drops directly into the factory air box. Pair this with a quality intake tube or manifold work to maximize the breathing benefits this filter provides.