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:

Specify if not power trim — add $15 for tilt lock parts.

Med Jet Kit

For use on – 100HP, 105HP, 110HP, 115HP, 120HP, 125HP Mercury/Mariner 2 Stroke Motors

Price: $