Our coolant y-pipe was made specifically for the 13-19 Dodge 6.7L Cummins trucks. The factory y-pipe is built with a cheap composite material that just doesn’t hold up and is prone to leaking & cracking. We took from the factory design and molded our replacement piece out of solid Billet Aluminum, so no more worries about a leaky or broken y-pipe since ours will last forever, and look killer doing it.