RB N54 PCV Valve Screw-on Cap pre-equipped with O-ring

These units offer a cool robust design, that will not break like the brittle OEM plastic at times does. This solution helps you out of a bind when or if that happens to you by not having to purchase an entire valve cover to get only this part from BMW. Either way this is a great compliment for the RB PCV Valve! Note 1: The RB PCV Screw-On Cap comes pre-equipped with a new O-ring and during installation it helps to coat these with a little bit of clean engine oil while threading into place. Note 2: We are not responsible for over tightening this cap and breaking your valve cover! Please use care to not over tighten the cap! Note 3: The RB PCV Valve does not come with the RB Screw-on Cap as pictured. The picture is simply to illustrate how the RB Cap interfaces with the RB PCV Valve. You will need to order the RB PCV Valve itself as a separate item in order to receive it.