The XDP 6.7L Weldless Dual Radiator Coolant Y-Pipe XD283 replaces the weak plastic Coolant Y-Pipe in your 2013-2015 Dodge 6.7L Cummins. A plastic Coolant Y-Pipe is used in the routing of the coolant hoses due to the 2013-2015 Ram trucks having a dual radiator cooling system. When the factory Y-Pipe fails, it causes coolant leaks that can spray down the engine bay, and also cause overheating conditions. Don't let a failed Coolant Y-Pipe leave you stuck on the side of the road!