I have a coolant line with a small leak. From the drivers side looking down it comes off the radiator and appears to be a trans cooler line? Are there two trans cooler lines? One for coolant and the other for trans fluid? Anyone have a part for this?

I'm thinking this is it? Transmission Cooler Line For LR3 And Range Rover Sport

 

That is the trans cooler line, there are 2, in/out, but they both carry trans fluid.

You probably don;t want to replace the line, as it goes back to the trans - front diff needs to come out for access. However, generally these leak due to the clamp loosening over time. I usually pull the line off, trim it down(about an inch, there's enough slack) and put a new clamp on it.

Might be a good time to replace the front differential breather vent cap with the new style too.

 

Thanks! I was able to get a 7mm ratcheting wrench on it to tighten a few turns, I'll monitor then trim/replace in the near future.