2003 S-10 Radiator thread problems

I have a 2003 s-10 v6. i recently switched out the water pump and ended up taking out the radiator to do it. now that the waterpump is in i went to reattach the radiator the 4 lines to attach. all but one reattached and screwed back in. the good news it is the top oil line that for some reason wont thread into place. i need to know if they make an adapter for this or can i rethread this or what else are my options? please help. its my way to work. thank you.

I have a 2003 s-10 v6. i recently switched out the water pump and ended up taking out the radiator to do it. now that the waterpump is in i went to reattach the radiator the 4 lines to attach. all but one reattached and screwed back in. the good news it is the top oil line that for some reason wont thread into place. i need to know if they make an adapter for this or can i rethread this or what else are my options? please help. its my way to work. thank you.

No adapters.
Depending on thread messed up on the line nut or the threads in oil cooler.

Oil cooler threads are pipe thread.
See if you can find a pipe thread tap the right size.
And just get it started in the cooler so the line nut to start in straight.

If the line nut a 3 corner file may straighten up threads on end to get the line started in.

Main thing when starting the nut in cooler is to start it straight and by hand or light wrench pressure.
Start it straight in if it cockes over to side you will mess up threads/
Good luck and let us know how it goes.