Take The Hassle Out Of Transmission/Oil Cooler Line Repair! Everything You Need In One Place To Repair Or Replace Cracked Or Leaking Transmission/Oil Cooler Lines Quickly And Easily. The Master Kit, Trk-555, Includes Connectors, Adapters, Tube Nuts, As Well As The Hose, Clamps, And Pliers In One Convenient Place! The Kit Contains Components For 5/16 And 3/8 Lines For Use On Most Domestic And Import Applications. The Rubber Hose Is Durable Triple-Walled And Is Pressure Rated Up To 250 Psi. With The Master Kit Your Repair Is As Easy As One, Two…Done!