Lower Unit Drain Plug Screw Kit – Fits Yamaha 40HP-300HP (Replaces 90340-08002, 90430-08020, 688-45341-10-00) 85hp 8 mm × (C) 19

8 mm × (C) 19 mm Fitting Type Internal Hub Blades 6 What’s in the Box

It is crucial to match your engine model

27-94996Q2 V8 Engine MerCruiser 350 Mag 300 HP 4-Stroke 1991–Present 74639Q02

Overall Diameter: 90 mm (3

ensuring reliable performance by regulating coolant flow at a precise 60°C (140°F)

Lower Unit Drain Plug Screw Kit – Fits Yamaha 40HP-300HP (Replaces 90340-08002, 90430-08020, 688-45341-10-00) 85hp 8 mm × (C) 19Product Details This Lower Unit Drain Plug Screw Kit is designed for Yamaha outboard engines ranging from 40HP to 300HP. It provides a complete straight screw plug assembly for lower unit oil maintenance, fitting most engines in this horsepower range. Always verify fitment by matching your original part number rather than relying solely on engine horsepower. This kit directly replaces Yamaha OEM part numbers 90340 08002, 90430 08020, and 688 45341 10