OK Ive been noticing a low drip occasionally on my cooling system... and seeing coolant around the expansion tank.. suspecting trouble but could not locate source... cap? overpressure? well I found it... the &*%&$ A$$ little nipple under it going to the throttle body warmer was dripping...and coolant would usually stay just under it if I filled it... it would not leak unless cap was on and under pressure.. well now it just leaks so I know thats a problem... I found it because I had plenty of time yesterday replacing defiantly worn water pump... haven't had 4 hrs available for a long time to do this but now I did... anyway... are the affordable aftermarket expansion tanks ok? I see one at miami British down by me that I can get but in the pic it does not show that little nipple! heck Id remove that entire system as its not necessary down here but to keep everything as it is...

I want to get a decent tank... do these come without the TB heater nipple were I could accidentally get the wrong one?

 

I replaced mine with an aftermarket which started leaking within months I ended up better off with a used LR part.

 

Land Range Rover Discovery Genuine OEM Factory Coolant Expansion Tank Reservior

 

those are aftermarket; says so on the discription

 

yeah I may go used original if OEM factory new is too pricey for now.... I think the one I have is after market when I bought my disco used.. how do I tell? also do all of them have a nipple that goes to the throttle body heater?