BMW N54 / N55 / S55 Engine Billet Aluminium Oil Thermostat Housing Cover & Plug Kit (Replaces 11617568552) Towing Mirror It's best practice to flush

It's best practice to flush your cooling system and fill with fresh coolant when swapping radiators

These mount at the factory tail light points using the existing mounting holes — no brackets or drilling required

2 2009-2012 Xenon (HID) Left-Hand Drive only

Style: Custom V-Design

BMW N54 / N55 / S55 Engine Billet Aluminium Oil Thermostat Housing Cover & Plug Kit (Replaces 11617568552) Towing Mirror It's best practice to flushReplace your aged factory oil thermostat housing cover and plug with this premium billet aluminium upgrade, precision CNC machined from aircraft grade aluminium for permanent durability and a refined engine bay aesthetic. The factory oil thermostat housing cover and plug on N54, N55, and S55 engines are common engine bay components that suffer from aging, surface degradation, and seal failure over time leaving the engine bay looking tired and creating