This BMW Radiator Cap is the perfect replacement for your vehicle. With its screw-on attachment type and compatible manufacturer part number B1 85 02A1A, this cap ensures a secure and tight fit. The cap's black colour and sleek design complement your engine's cooling components and add a touch of style to your vehicle. This cap is compatible with 3 series BMWs. It is a must-have for car enthusiasts and those who want to ensure their vehicle runs smoothly. Don't miss out on the chance to upgrade your engine's cooling system with this high-quality Radiator Cap.