The current Northern California fleet includes fifteen EMD F59PHI locomotives (numbered 2001 through 2015),eight Siemens Charger locomotives (numbered 2101 through 2108) and a large number of bi-level coaches and café cars which are known as "California Cars". All cars are named after mountains and rivers of California. There are two series of California Cars, the 8000 series and the newer 6000 series. Standard Amtrak equipment such as the GE P42DC, Amtrak's main locomotive, standard Amtrak Dash 8 locomotives, and Superliner cars can appear on "Capitol Corridor" trains as substitutes.