This is a replacement for the flexible rubber coupler mounted at the motor drive shaft/gear leg shaft junction on SE20, SE25, SE30 and SE40 thrusters.
If you have "sheared" your existing flexible coupler on your SE20/25/30/40 thruster, this is the one to buy.
This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm.
www.P65Warnings.ca.gov