• 2006-Present N54 N55 S55 Engines with factory oil thermostat.
This billet CNC replacement aluminum oil thermostat lid and caps are an excellent way to dress up your N54 N55 S55 engine bay. Anodized black, red or blue. Easy to install and made in the USA. Can be used with or without our Sport Oil Cooler Valve.
Replaces OEM Thermostat housing lid part numbers 11427573212 11427850293 11427637052
Please check to be sure you have a factory oil cooler on your vehicle before ordering. Sport Oil Cooler Valve upgrade location highlighted in yellow in the above photo. Vehicles without a factory oil cooler can NOT use this upgrade.