Tired of being limited by the OEM metal coolant tube from the front cover to heater valve/ firewall heater hose of your 6.0L Power Stroke? Want to have the ability to cleanly route that coolant hose for big single and compound turbo setups, or just reroute coolant back to front cover? This 12AN fitting will give you exactly what you need to run a custom setup. The press-in fitting seats perfectly in the front cover and bolts down like the OEM tube, while utilizing a Viton o-ring for leak-proof performance. The 12AN male end allows you to run any hose setup you want.