Yamaha Lower Unit Assembly - 6H3-45300-19-4D Boat Grill Covers & Cases This product has been superseded

This product has been superseded by: 8M0107993

It uses a 14-pin connector commonly found on non-DTS OB/MCM-style helm installations

Most boaters stick with OEM because it avoids electrical quirks and keeps things reliable

It just works the way the system was designed to

Q4: Can I replace the sleeve myself

Yamaha Lower Unit Assembly - 6H3-45300-19-4D Boat Grill Covers & Cases This product has been supersededYamaha Lower Unit Assembly Gearcase & Propulsion System 6H3 45300 19 4D Overview A bad lower unit will take a solid running motor and turn it into a headache fast. Ive seen guys chase small fixes when the real issue was deeper in the gearcase, and at that point, a full replacement just makes more sense. This assembly takes the guesswork out and gets everything back in line where it should be. Once its installed right, youll feel the difference