Radiator Cap, Replace 16401-31650, 1640131650 Compatible with Toyota Lexus - 2003-2010 4Runner, 2007-2011 FJ Cruiser, 2005-2011 Tacoma, 2003-2009 GX470, 2006-2012 IS250 IS350, 2007-2011 GS350 GS450h

Fit perfect in my FJ Cruiser

A simple radiator cap is easy to install! Way cheaper than from the dealer!

Works same oem . First installing was verytight but loosen as I exercised it.

I bought this because my old radiator cap broke inside the radiator. My fluids were slowly evaporating and would cause my 4runner to overheat. After switching to this cap, the radiator fluid has remained at the same level and it has been almost a month now. With my previous broken cap, the fluid would be gone within 2 weeks.This was used for 03 4runner.Over all, I would recommend this for OEM replacement.

I bought this as it appeared to be an OEM replacement as it’s the same price as OEM. I’m driving home and I hear a loud POP, once I get home I arrive to my car smoking, and overheating. I pop the hood and this cap has completely fallen apart, and no longer able to even function. Coolant was squirting out all over my engine through the overflow as there was now nothing to hold back the pressure. It’s a miracle I recovered most of the pieces, I think there may still be a small piece jammed in radiator. If you value your car, and your engine health, buy this part from a reputable dealer. If there was a way I could sue this company for the damages I incurred to my car, believe me I would.