I am replacing the fuel pump
on my Universal M50. I currently have one of the (newer) square pumps installed. Universal has sent me the (older) round style pumps as a replacement. It is considerably larger. They tell me the pumps are equal in function.
Does anyone have insight into the differences? Is the more massive pump possibly more robust? Is the newer, lighter pump possibly better engineered, with experience of failure modes?
My goal is to have the most reliable pump installed. Thanks for some insight.