This pump is a direct replacement for 1951-1954?Chevrolet convertible cars that have been converted to 12 volt electrical systems. All of our pump assemblies are all new direct replacements, we have brackets and reservoirs made to match the original pumps so you can just install the new one in place of your old worn one and not have to worry about it fitting. Don't forget to check out our new hose sets and hydraulic top lift cylinders. This pump mounts vertical behind the rear seat just as the original.