This is a Tru-Cool Low Pressure Drop Engine and Transmission Oil Cooler L7B This Oil Cooler is for your Engine or Transmissions and is made by Tru-Cool for vehicles with 19,000 Gross Vehicle Weight. The Cooler has (2) threaded 1/2" female connections. The Cooler is 11" x 5 3/4" x 1 1/2" Advanced All-Aluminum Design Combines Maximum Cooling With Minimum Flow Resistance For Extended System Protection. Protection Against #1 Cause of Transmission Failure. This cooler is in stock now! Ready to ship!!