M20 Thermostat Vent Screw - Genuine BMW

This part is a recommended addition to our M20 Timing Belt Kit with Water Pump, should your current bleeder screw show signs of corrosion.

At this point, these engines and chassis are at least 27+ years old and the reality exists that some components have seen better days. If your thermostat bleeder screw is one of them, take this opportunity to replace it with a genuine BMW piece. It will help to accurately fill your cooling system.