Part number 12 replacement for GE Build Your Own Jet Engine
GE forgot part number 12 so I quickly designed a replacement. Gets the job done, Isn't ugly. Its not perfect and I would change it a little if I had to make another, but it worked well enough for the one I printed.
NOTE: I designed this part based on size measurements from my calipers so It fits my print but may not fit perfectly on others. I probably should have used the source files but I was not willing to put more than 15 minutes into this.