FABULOUS post. THANK YOU! With a little tweaking of the part numbers, I got a large feed tube top with a white handle to match my machine, and a longer stem. The longer stem is critical since the top is a higher dome. The poster who has over an inch between the blade and the lid probably did not have a longer stem. The XL top works just fine with the 5150. I've used slicing, grating, single-sided, double sided, and chopping blades. All work great. Thanks again.