Yamaha Lower Unit Assembly - LZ300 - 6D1-45300-40-8D - See Description for Applicable Models MerCruiser 5.0L/5.7L TKS Alpha Service Parts and so will its reliability

and so will its reliability

Fits 175–225hp Mercury 3

This product has been superseded by: 54-815504372

Yamaha - Fuel Pump Diaphragm - Fuel Delivery Component - 6H3-24411-10-00

Easy maintenance: Simple to install and replace

Yamaha Lower Unit Assembly - LZ300 - 6D1-45300-40-8D - See Description for Applicable Models MerCruiser 5.0L/5.7L TKS Alpha Service Parts and so will its reliabilityYamaha LZ300 Lower Unit Assembly Lower Unit 6D1 45300 40 8D Overview On the LZ300 setups, the lower unit takes a beating if youre running hard or spending long days offshore. This is one of those components you dont think about until something feels offthen you realize how much it affects everything from shifting to overall control. Ive seen a fresh lower unit completely change how a motor runs, especially under load. When its right, the boat feels