I replace mine every 2-3 years... this is one of the best and most cost efficient steps you can take to prevent overheating... not the only one, but an easy one.

These are OEM, get one and replace yours today.

I bought a new degas bottle from rockauto.com that came with a cap a year ago. Since then my truck was running hot (220+ oil temp) on the highway. Since installing this new Ford cap, temps are way down and its obvious the cooling system working so much better! I don't think the old one was able to hold any pressure on the system!

This is OEM, mine came in the Motorcraft pacakaging. Fixed my seeping, leaky, aftermarket cap problems. Protect your cooling system with one from RiffRaff for much less than your local dealer will charge.

Cap was oem just as described

I didn't realize my old cap was in that bad of shape but after I replaced the degas bottle I figured I might as well replace the cap as well. After the new one I'm not sure my old one was even working right anymore. Great quality.

Great quality part for less than dealer price and no worrying if an aftermarket is gonna work or not

While this is a simple part, it is often overlooked for replacement. If not working properly, it will cause your cooling system to be substantially less efficient. Spend the money! It's easy enough to install and will insure that this aspect of your cooling system seals properly!

Brand new Ford quality radiator coolant cap. The old one was replaced due to age and is cheap insurance.

I had some problems with non oem cap and bottle leaking. I went with oem to eliminate any fitment issues. Fast shipping and great customer service!