This is the Lower Coolant Pipe found on the front of the engine in all Z32's.

 This pipe connects the thermostat housing to the lower radiator hose.

These are prone to corrosion and often have holes through them where the hoses attach.

Sold individually. 

Fits:

• 1990-1996 Nissan 300ZX (Z32) 

This listing is for one new Nissan OEM Part.

Good used coolant pipes can be found HERE.