This 5-Cup Plastic Jar Replacement Part #089 for Oster and Osterizer blenders is dishwasher safe and BPA-free. Replaces Oster square top plastic jars. Fits all Oster blender models using a 5 cup jar with a square top. Fits all Oster Kitchen Center models. This is the most common Oster jar type. All Oster Kitchen Centers use this type of jar. This will fit most Oster blenders, but if you are a very old model (40 years old) using a 4 cup jar or a new model using a 6 cup jar, your lid will not fit and you may need to purchase the OS-060 lid and cap. 5-Cup dimensions: 9 inches (height) x 7.9 inches (depth) x 5.6 inches (width).