Mishimoto has developed an aluminum expansion tank for the 2015-2021 Ford F-150 to replace the weak and unsightly plastic OEM tank.Anyone who's ever worked on an aging vehicle knows how brittle plastic pieces in the engine bay become. While the 2015-2021 Ford F-150 is still relatively new, It's only a matter of time before you'reach across the engine bay to tighten a bolt or install an upgrade and put your hand through the stock expansion tank.The stock expansion tank isn?t exactly designed to be aesthetically pleasing either. In fact, it looks more like a bag of dinner rolls than an essential part of a rugged work truck. The Mishimoto aluminum 2015-2021 Ford F-150 expansion solves both issues with a durable aluminum construction and sleek design. The Mishimoto expansion tank is available in either micro-wrinkle black or a natural finish, for easy customization through powder-coating, anodizing, or hydro-dipping. Our expansion tank also utilizes an easy to read sight glass to make checking the coolant level quick and easy.Of course, our Lifetime Warranty ensures that you never have to worry about seeing an ugly, leaking, plastic expansion tank on your 2015-2021 Ford F-150 ever again.