This listing is for a 4-pack of valve springs for 2003-08 Chrysler 5.7L HEMI V-8 engines. P/N (4) RV-3556S. These are conical valve springs with external shroud and a 2.148" free length. Covered applications include: 2005-08 Chrysler 300 2007-08 Chrysler Aspen 5.7L 2006-08 Dodge Charger 5.7L 2004-08 Dodge Durango 5.7L 2005-08 Dodge Magnum 5.7L 2003-08 Dodge Ram 1500, 2500, 3500 5.7L 2006-08 Jeep Commander 5.7L 2005-08 Jeep Grand Cherokee 5.7L