This billet aluminum coolant port for the Tesla Model S/X rear large drive unit will help ease installation of the drive unit by allowing the coolant lines to run into the drive unit at a 90 degree angle. This provides nicer and tighter packaging for the drive unit, allowing it better fitment in vintage applications that tend to be tighter on space. Furthermore, the plastic construction of the stock fitting is prone to cracks and leakage. Fitting is made from 6061 billet aluminum for maximum strength and durability against strikes from road debris, as the fitting sits in the lowest part of the motor. A sealing O-ring is included, and the threaded output is NPT 1/2", so this works well with -AN 8 fittings so you can use braided lines.