I don't know the exact Moen model number of this bathroom facuet, but I need to replace the cartridge below one handle to stop a slow leak its causing from the tap. I've removed the little cap on top and the screw it hides inside, which allows me to take the lever off, but I see no way to remove the rest of that side of the faucet.
All the videos I've seen explaining how to do this note that the part of the faucet protecting the cartridge should just lift off now, or screw off, but mine doesn't want to budge at all. Am I missing something else that is securing it on the body of the faucet? Here's a photo of the entire faucet for reference: