aftermarket brake fluid cap

[~Linda~ ^-^]

I purchased a chrome aftermarket cap for the brake fluid on ebay that was listed for 06 c50. My old one is recessed on the inside allowing for a closure shield to go between the cap and the brake fluid mastercly. The new one has a protrusion on the inside and would not allow the installation of the factory closure shield. The new one has no seal of any kind so I am worried about it letting air into the mastercly due to no gasket.
Anyone install one of these can give me a heads up ?:301:

 

[｡Tessa ｡]

If you cannot seal it do not use it. You also have to worry about dust and water getting in.

 

[Braudie S]

Or more importantly, the fluid getting out.

 

[yahoo critic]

LOL All the dirt, water, and air does not make a difference if there is no fluid.

Starting is optional, stopping is mandatory:wheelie: