I have been chasing a small coolant leak for more than a month. A casual inspection during an oil change I noticed a small amount of coolant between the engine block and the adapter that the oil cooler/filter attach.

Removal and replacement seem straight forward; just clamp the coolant hoses, remove the oil filter, unbolt the adapter from the engine block. I don,t know if coolant comes from the block here, but since it has two hoses I would guess nis, yet it appears to be leaking from there. ( see attached picture)

I know I will loose GALLONS of coolant if it does; I am prepared for that. What I cannot find is a part number for the gasket/O-ring or any other exotic method Land Rover may use to seal this part.

Any advice from a parts number guru here in the US or from our cousins across the pond would be helpful.