Jet kits come with all the hardware you need to convert your motor to a jet.  (You will need to use the water pump off of your existing lower unit.)

Notes about this kit:

Includes shift cable assembly or shift rod for tiller steering.

Driveshaft spline: 4 teeth from 1968-1988, 17 teeth from 1989 -present.

Med Jet Kit

For use on – 55HP, 60HP, 65HP, 70HP, 75HP Johnson/Evinrude 2 Stroke Motors

Price: $