I was useing the 1830 and the coupling broke between the motor and the pumps. I have it a part and I will have to replace it,The thing is finding the one like what is on there now.I dont want to have to fab one up.the motor is 4 cylinder ford,and the coupler is about the diameter of the fly wheel and the center there is a slinded hub that the pump slides into. it has had motor changes over the years ,and I am not sure what kind it is. I hope someone can lead me in the right direction. Thanks for any help