Review on Black Stant Engine Coolant Reservoir Cap by Steve Jones

After comparing it to the cap that came with my Dorman 603-703 coolant reservoir bottle (included in the kit - not recommended) it is clear that the manufacturer has invested in quality in theirs Work. 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.