The oil pressure sensor switch with part number 5149062AA on a 2005 Dodge Magnum 5.7L is located on the
passenger side of the engine block, near the front. It's typically near the oil filter, but not directly on it. You'll likely need to get underneath the vehicle for a clear view. It's a small sensor with a single wire connector.
Because of its location, access might be a little tight. Referencing a repair manual or online diagrams specific to your vehicle's year and engine will significantly improve your chances of quickly locating it.
