Replacing the serp belt with superseded part number included a new pulley. PSP etch into it, I think stands for power steering pump, but it looks bigger than the existing one.
replacing the 57-8077551 belt with 57861757A1 on mercruiser do you have to replace the pulley in order for the new belt to fit properly, seeing how the new pulley is bigger?
replacing the 57-8077551 belt with 57861757A1 on mercruiser do you have to replace the pulley in order for the new belt to fit properly, seeing how the new pulley is bigger?