coolant tree thing?

[gar70614]

any1 know wat gm calls the black pipe that comes off the water pump and feeds the lim and heater core?

[fastback4]

thermostat by-pass pipe http://www.trademotion.com/partlocat...13&catalogid=2

[robertisaar]

thermostat by-pass pipe http://www.trademotion.com/partlocat...13&catalogid=2

some of us refer to them as a triple tree, but yeah, that's the more correct term and part.