Hello, I’m Nathan, and I’ll be assisting you today. My livelihood depends on your positive feedback, so your satisfaction is my highest priority.
Sorry to hear you’re having trouble, John.
Is the issue that it won't fit in, you can't push it down all the way, or something else?Can you tell me what part number you see on the black cart? Is it an exact match to the old one, and can you actually try putting the old black one in to see if it will fit?
You may have the wrong replacement, have some tape/cap or other packing material stuck on it, etc.