Cheap alternative to 23-8159501 nylon bushings
These are alpha 1 gen 2 trim cyliner bushings. The boat takes 8 of these total. I keep seeing them listed for about 5 bucks each plus shipping or more. They looked very familiar, the bushing is the same size as one used in a snapper rear engine rider. These are about 2 dollars each (even cheaper thru rotary but a 10ct minimum) any local lawn equipment shop should be able to get them for you. Old snapper dealers probably have them on the shelf.