Fitment: 2006-2008 Jeep Commander 2005-2009 Jeep Grand Cherokee 2005-2006 Jeep Liberty Features & Benefits: Larger working surface provides cooler running and longer life expectancy Thicker body and deep finned faceplate dissipate more heat Uses a better quality bearing than Standard Duty and Heavy Duty designs 100% performance and durability tested Enhanced fin design for maximum heat dissipation .