Yamaha - Check valve kit - 7DH-R4104-00-00 Mercury-40HP-EFI-2005 For a major service interval

For a major service interval like this

Generic paints may appear close in color but typically fall short in adhesion and resistance to salt and heat

You won’t be wrestling with questionable dimensions or worrying about whether it’ll hold the correct temperature

• Marine-Grade Construction – Built to withstand vibration

Yamaha - Check valve kit - 7DH-R4104-00-00 Mercury-40HP-EFI-2005 For a major service intervalYamaha Check Valve Kit Fuel System Control Component 7DH R4104 00 00 Overview Check valves are one of those parts you dont think about until fuel starts draining back or the engine takes longer to start. Ive run into plenty of cases where a weak or stuck valve caused inconsistent fuel delivery without any obvious leaks. This kit helps keep fuel moving in the right direction and holds pressure where it should be. When its working right, starts are