This is NOT a universal part, please see measurements BEFORE ordering
Top of cap has 2.75" opening where it screws on to jar
Even if your model is listed, please check dimensions shown in pictures before ordering
Fits Black & Decker Blender Models BL1900, BL2900, BL3900, BL4900
Fits Black & Decker Blender Models BL5000, BL5900, BL6000, BL9000
Univen BL5000-11 blender jar bottom screw cap. Fits Black & Decker blender models BL1900, BL2900, BL3900, BL4900, BL5000, BL5900, BL6000, BL9000. Top of cap has 2.75" opening where it screws on to jar.