That is the same pump we used to use, the primary issue being it has many points of articulation that can come loose and cause a shaft to break and this same issue also led to more noise. Unfortunately, it is very hard to suggest a replacement as this pump essentially comes from Sicce as a motor and mixing chamber, companies make their own needlewheels and air intake so the performance can be anything between our 9410.040 and 9420.040. Our version was really right between them. I would see what the skimmer manufacturers rating is and take the one that is the closest match.