Is your BMW's coolant bleeder screw stripped, leaking, or just looking worse for wear? This is a direct replacement for the OEM part number 17111712788. It's a crucial little part – it's the screw you open to 'bleed' or release trapped air from the cooling system after you've done work on it (like changing the coolant or thermostat). This one is made from solid blank brass, which is a great upgrade over plastic because it's much more durable, less likely to strip, and resists corrosion from coolant. It comes with a new rubber O-ring to ensure a tight, leak-free seal. Compatibility is huge with this part. It fits a massive list of BMW models from the 80s through the 2000s, including many 3-Series (E30, E36, E46, E90), 5-Series (E34, E39), 7-Series (E38), 8-Series (E31), X3 (E83), X5 (E53), Z3, and Z4, among others. (Check the full list in the description to confirm your exact model and year). Always remember to only open this screw when the engine is completely cool to avoid being sprayed with hot coolant. A 12-month warranty gives you peace of mind. If your old bleeder is giving you trouble, this brass replacement is a cheap and effective fix to keep your BMW's cooling system functioning properly.
