Review on Dorman 42053 Brake Master Cylinder Reservoir Cap for Model Compatibility by Theodore Huynh

Purchased to replace a leaking cap on a '97 Cherokee. I thought I had a nasty brake fluid leak, but it turned out the plug had burst. The price for this comes from the breathable device on the underside of the cap. If you have excess fluid at the top of the master cylinder reservoir, try this first before going crazy looking for a leak.