REPLACEMENT RADIATOR CAPS: The radiator cap holds the inside the radiator, but also acts as a bi-directional valve to maintain proper pressure inside to ensure the radiator works properly. If the pressure is not maintained, the will boil and evaporate, and the engine may overheat. Bad Radiator Cap symptoms: air enters the system, levels are low, leakage, reservoir overflow, engine overheating
Car Compatibility: -2003-2010 4Runner, 2007-2010 Cruiser, 2005-2009, 2003-2009 GX470, 2006-2012 IS250 IS350, 2007-2011 50 GS450h
Interchange Part Numbers: 16401-31650, 1640131650, If the engine cools, loosen the old cap and screw in the new cap
Professional high quality style fits or exceeds all equipment performance replacement radiator caps Made from premium materials for durability. Designed to work with open cooling systems and overflow reservoir type systems, this cap is much easier to install and remove
We will only accept returns if the item is different from the picture shown
on the product page or is not in the same condition as the product description.
All items are 100% authentic: we verify authenticity before selling.