Yamaha Lower Unit Assembly - 68S-45300-42-8DYamaha Lower Unit Assembly Outboard Drive System 68S 45300 42 8D Overview When a lower unit starts wearing out, youll feel it in how the boat handles and how smooth the power comes on. This 68S 45300 42 8D assembly is built to restore that solid, dependable performance Yamaha is known for. It keeps power transferring cleanly from the engine to the prop so everything runs smooth under load. If youre replacing a tired unit, this is the kind of OEM setup
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