Sierra - 4-Stroke Engine Oil 25W-40 Option:Quart This is where the Dark

This is where the Dark Seas Sea Dogs-Blind Stitch Tee earns its keep

Torque Specs

or switches to wear out

Seat Type Gasket

5 inch conical flap discs are designed for maximum performance when grinding aluminum

Sierra - 4-Stroke Engine Oil 25W-40 Option:Quart This is where the DarkFormulated to provide excellent lubrication and corrosion protection. Stern drive and inboard engines operate under high load and running stresses. This product is developed for the marine environment and will out perform standard 4 cycle automotive engine oils. Sierras 25W 40 oil offers excellent detergency, anti oxidants, antiwear, and corrosion protection. The benefits to your engine are reduced wear to the internal components, protection of