Radiator Cap, Replace 16401-31650, for Toyota 4runner, Fj Cruiser

REPLACEMENT RADIATOR CAP : The radiator cap holds the coolant inside the radiator, but it also works as a two-way valve that keeps the right pressure inside so the radiator does it work correctly. If the pressure isn't maintained, the coolant can boil and evaporate, putting the engine at risk of overheating. Symptoms of a Bad Radiator Cap: air enters the system, low coolant level, coolant leaks, overflowing reservoir, overheating engine.COMPATIBLE WITH TOYOTA VEHICLES : Toyota - 2003-2010 4Runner, 2007-2010 FJ Cruiser, 2005-2009 Tacoma, 2003-2009 GX470, 2006-2012 IS250 IS350, 2007-2011 GS350 GS450hREPLACES PART : 16401-31650, 1640131650 Once you have a replacement and your engine is cool, simply unscrew the old cap, and install the new by screwing it on.Professional, high quality style and meet or exceed all equipment performance replacement radiator cap. Constructed with premium materials for durability. Designed to function on open cooling systems and overflow reservoir type systems and allows the cap to be installed and removed much easier.Manufacturer Part Number: 16401-31650Compatible with Toyota Vehicles for:2003-2009 4Runner 4.0L V6 2010 4Runner 2.7L L42007-2010 FJ Cruiser2005-2009 Tacoma 2006 GS3002007-2011 GS3502007-2011 GS450h2010-2011 GX4602003-2009 GX470 2006-2012 IS250 2006-2012 IS350 Material:metalcolour:SilverPackage Contents:1 x Radiator CapOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.