Review on Black Stant Engine Coolant Reservoir Cap by Bernard Her

After comparing this cap to the cap that came with my Dorman 603-703 coolant reservoir bottle (supplied - not recommended) it is clear that whoever made it Her work is based on quality. Differences include; Not only did the original thread start with a ground end, there are no obvious manufacturing breaks, the plastic feels denser/harder and looks like it was made from better molds. Highly recommended.