Mishimoto 2015+ Ford F-150 Aluminum Expansion Tank - Natural FinishMishimoto has developed an aluminum expansion tank for the 2015+ 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+ 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