The connectors on the original oil coolers have the tendency to break when they're being undone from the oil cooler.
This is rather annoying as an oil leak will be the result of this.

This Oil hose fitting kit resolves this problem in a very simple way. You remove the old connectors, slide the hose on the new connector and crimp the oetiker clamp in it's new position.

This kit consists of four new connectors and oetiker clips.