Dorman OE Solutions Auto Trans Oil Cooler Line Connector. Designed to fit and install like the original, Dorman OE Solution Automatic Transmission Oil Cooler Line Connectors specifically cover those original parts with high failure rates. Many of Dorman OE Solutions products are new-to-the-aftermarket, offering the service dealer a better alternative to the OE Dealer. These parts have been re-engineered to be better than their original OE design.