One motor is a 2002 Ser#OT44421, the other 1999 Ser#06804109. Both motors are Carbureted and both start and run fine, both were completely gone through 4 years ago by certified Mercury tech. I have no idea how many hrs. they have but we typically put on 75 hrs/ yr. both came off a 28' Tri-toon boat. Just wanting more power to keep up with a friend! They are 24" shafts ( or 20" with spacers removed) both standard rotation with 17 pitch 3 blade aluminum props. Will separate or make a deal on the pair. Make me an offer!