When you can't make it to the dealership, you can always go online to buy OEM-made INFINITI parts, including the Radiator Cap for your INFINITI, part number 214308991A. Though the Radiator Cap is a straightforward and small part of the overall Cooling System, it plays an important role. Without a radiator cap, your engine could overheat and be damaged. Thankfully, the Radiator Cap is easy and affordable to replace. The Radiator Cap is also sometimes called a coolant reservoir cap.

What exactly does a Radiator Cap do? Like a fuel cap helps keep fuel in your tank, this cap helps hold coolant in the radiator and ensure the cooling system stays properly pressurized.

It might be time to order a replacement INFINITI Radiator Cap if you find rust around the current cap, white streaks on the radiator, an overflowing coolant reservoir, a caved in radiator hose, or leaks around the existing cap. An overheated engine could also signal it's time to buy a new Radiator Cap for your INFINITI. If a replacement cap doesn't fix your radiator issues, we advise bringing your INFINITI to the closest INFINITI auto shop. Your cooling system needs to remain in good condition so your INFINITI can perform like you want.

Installing a new INFINITI Radiator Cap is super simple, particularly if you have a little automotive knowledge and reference your owner's manual. Before you get started, allow the engine to cool. Then, read the INFINITI owner's manual to identify your radiator cap location. Next, double check that the pressure rating on your replacement cap matches the rating on your existing cap. (Shop with INFINITI Parts and you don't have to worry. We know your INFINITI model and trim inside and out.) Twist off the bad cap and twist on the brand new one. Replacing your INFINITI Radiator Cap really is that simple!

This Radiator Cap is made for your INFINITI EX35 2008-2009, INFINITI G35 2007-2008, INFINITI G37 2008-2009, or INFINITI G37X 2009. Shop online today. Click on the What This Fits tab for more details.