Oiling System

BMW B58 / S58 Black Billet Engine Fluid Cap Set is a premium upgrade designed to enhance both the performance and aesthetics of your BMW’s engine bay. Crafted from high-quality billet aluminum, this cap set provides superior durability while replacing the factory plastic caps for a sleek, high-end look.

Engineered to maintain full OEM functionality, these caps integrate the original pressure relief valves, ensuring proper system operation. The deep black anodized finish adds a bold and aggressive appearance while offering excellent resistance to heat and corrosion.

• Precision-machined billet aluminum – Stronger and more durable than factory plastic caps
• OEM pressure relief compatibility – Ensures safe and reliable system performance
• Sleek black anodized finish – Adds a high-performance look to your engine bay
• Heat and corrosion-resistant – Built to withstand extreme conditions for long-lasting reliability
• Direct replacement design – Fully replaces factory caps for a seamless fit
• Simple installation – Requires swapping OEM pressure relief valves for full functionality

Upgrade your BMW’s engine bay with the BMW B58 / S58 Black Billet Engine Fluid Cap Set, combining premium style with high-performance reliability.

The N54/N55 are the powerhouses of BMW, one of the most common tuning platforms, and a fan favorite for spirited driving. Being an N54/N55 owner you know that oil temps can get out of hand leaving you with an anxious feeling and the needle a little too close to the red on your gauge cluster. What if you could get the oil flowing faster, maintain lower temperatures, and still have proper engine warm-up?

Upgrade your N54/N55 engine with our Billet oil cooler housing, replacing the underperforming factory-cast aluminum unit. Engineered for enhanced performance and a blended aesthetic, our Turner oil cooler housing features an OEM+ black anodized finish and our own engineered lower-temperature thermostat. Unlike makeshift solutions like thermostat bypass kits, our housing integrates an OE thermostat, ensuring a gradual yet expedited engine warm-up process, similar to factory settings but faster.

Out goes the factory 110-degree Celsius (230F) thermostat, replaced by our 70-degree Celsius (158F) counterpart. This new thermostat triggers oil flow a significant 72 degrees Fahrenheit earlier than the factory version. This early flow translates into prolonged lower oil temperatures for both the oil cooler and engine, maintaining a happier, healthier engine with consistently lower operating temperatures.

For N54 owners seeking to use the full potential of their tuned or modified engines, our upgraded housing and thermostat are must-have additions, especially for those who frequent the track or enjoy spirited drives on winding roads. Even if you're not pushing your motor to its limits, this upgrade significantly enhances reliability. With rising oil temperatures, the risk of oil breakdown rises, resulting in compromised lubrication, more engine deposits, and increased wear over time. Our solution addresses these concerns, protecting your engine's longevity and performance, regardless of your driving style.

For vehicles equipped with the factory oil cooler, our housing offers a multitude of advantages and is a direct replacement for the OEM unit. If your vehicle lacks a factory oil cooler, this presents an ideal chance to upgrade your setup with our housing, enabling the addition of a factory cooler for enhanced performance and increased reliability. Our primary objective is to maintain optimal oil temperatures, ensuring proper lubrication for the engine's internal components, in turn prolonging their lifespan.

Features:

Thermostat - 40 degrees Celsius/ 72 degrees Fahrenheit lower than the factory unit Billet aluminum to replace the raw cast aluminum factory housing Optional cooler capability for cars without an OEM oil cooler Utilizes the lower temp thermostat to circulate oil sooner rather than an always open solution which inhibits warm-up Combine with OEM oil cooler to add cooling capacity to your FBO N54/N55 or replace the stock housing for a cooling upgrade using your existing cooler Replaceable thermostat and gaskets for easy maintenance Quick easy installation Kit Contents:

N54/N55 Billet Thermostat Housing Billet thermostat cover Low-temp thermostat Thermostat spring Housing and thermostat cover gaskets 2 Oil cooler line O-rings (17222245358) Product Development:

Our upgraded oil cooler housing was designed, engineered, tested, and quality inspected by our Research and Development team at Turner. Nothing but the highest level of precision and quality through leading-edge product development technology including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.

These aluminum filter housings are prone to cracking, which can lead to oil leaks and serious engine damage. To avoid such issues, it's essential to replace the entire housing and cooler assembly.

Fortunately, Febi provides a top-quality reproduction unit at a much lower cost than genuine parts. If you require a replacement filter housing, opting for Febi-Bilstein ensures a cost-effective and durable solution.