https://www.ebay.com/itm/1998-2007-Toyota-Land-Cruiser-100-Series-Black-Air-Intake-Snorkel-System-Kit/371406911527?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
This is the one I bought and it looks to be the same.
Look at your heater tees at the back of the engine and also your front axle boots. As well as oil leaks from valve cover gaskets. Also check your radiator for replacement, If it hasn't been replaced, replace it!