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.

Motor serial #G044027 & up can use cam gate with tiller, Jet Kit #705.2-starts 1995. Cowling handle 1548 included.

Med Jet Kit

For use on – 18HP, 20HP, 25HP Mercury/Mariner 2 Stroke Motors

Price: $