Oil Cooler Hose Adaptor Fitting for all 6.5's 97-1/2-present. This fitting is what adapts the oil cooler hose to the engine block. It is a common source of leakage and often confused as a leaking oil cooler hose. 99% of the time, its only this fitting leaking, not the hose itself.

This fitting has 1/2" male pipe threads. If you have a 97 vehicle, check your size first. If 3/8" threads, order ssd-023.

If you have an oil leak where the oil cooler hoses meet the block near the oil filter, this fitting is the culprit. It contains a seal that allows the hose to swivel with engine movement. Once it drys out with age, it leaks engine oil.  Installs in minutes.