Oiling System

BMW B58 / S58 Blue Billet Engine Fluid Cap Set is the perfect combination of style, durability, and performance, designed to enhance the look and function of your BMW’s engine bay. Crafted from high-quality billet aluminum, this cap set is engineered to be a direct replacement for the factory caps, ensuring a precise fit and long-lasting dependability. Unlike cheap plastic covers, these caps fully replace your OEM components while maintaining the critical pressure relief functionality.

Designed with both aesthetics and performance in mind, the anodized blue finish adds a sleek, high-performance look to your engine bay while providing excellent resistance to heat, corrosion, and wear. The set includes billet engine fluid caps that require transferring the OEM pressure relief valves to ensure optimal system performance.

• Direct replacement design – Replaces factory caps for a secure and precise fit
• Anodized blue finish – Enhances engine bay aesthetics with a stylish, high-performance look
• CNC-machined billet aluminum construction – Ensures superior durability and longevity
• OEM pressure relief compatibility – Maintains factory pressure relief function for safe operation
• Heat and corrosion-resistant – Built to withstand extreme engine conditions
• Easy installation – Requires swapping the pressure relief valves from your original caps

Upgrade your BMW with the BMW B58 / S58 Blue Billet Engine Fluid Cap Set for a premium look and high-performance functionality.

BMW B58 S58 Billet Engine Oil Cap is a premium upgrade designed to enhance both the functionality and aesthetics of your BMW’s engine bay. Unlike generic aftermarket options, this billet oil cap incorporates OEM internals, ensuring proper pressure relief and maintaining factory reliability.

Precision-machined from high-quality billet aluminum, this oil cap provides exceptional durability while offering a sleek, performance-inspired look. Its anodized finish resists corrosion, heat, and wear, making it a long-lasting solution for enthusiasts who demand both style and reliability.

• Maintains factory functionality – Retains OEM pressure relief valve for proper engine operation
• CNC-machined billet aluminum – Provides superior strength and durability over plastic OEM caps
• Direct fitment – Engineered for a perfect, hassle-free installation
• Performance-inspired aesthetics – Enhances the look of the engine bay with a premium finish
• Anodized coating – Protects against heat, corrosion, and wear
• Long-lasting reliability – Designed to withstand high-performance driving conditions

Upgrade your BMW’s engine bay with a BMW B58 S58 Billet Engine Oil Cap, a perfect combination of OEM functionality and high-performance styling.

High oil temps are one of the triggers that causes the engine electronics to curtail boost, cut power, and possibly switch to limp mode. The stock oil system was not designed with enough cushion for running more boost. We have seen limp modes come from stock vehicles on the race track. To prevent limp modes and reduced performance, Dinan has developed this oil cooler kit with much more surface area than stock.

The Dinan oil cooler kit fits in the stock location behind the front spoiler on the passenger side of the car. This is an ideal location to maximize the ram air effect from the front bumper. New air ducts and vents into the wheel well help improve air flow. PTFE hoses with race-quality fittings and all hardware are included for install. Some Dinan oil cooler kits can even be used to upgrade cars that never came with an oil cooler. Once you see the Dinan oil cooler side-by-side with the factory cooler, you will understand why it's so much better. The Dinan cooler is bigger in every way - larger capacity, greater surface area, and more cooling tubes.

For over 35 years, Dinan has been America's premier tuning company, pioneering advancements in BMW modification while retaining a focus on balanced performance that preserves the original character and driving feel that a BMW offers. When you install a Dinan part on your car, know that it's not only carefully developed and tested, but that Dinan stands behind it with a four year, 50,000-mile warranty. Dinan believes so fully in their “total package” approach that once your car has been fitted with enough of their parts, they celebrate your conversion from stock to Dinan with an exclusive trunk badge, displayed proudly by BMW enthusiasts everywhere. The oil cooler kit is worth 3 points towards your Dinan badge.

This item fits the following BMWs:
2007-2010 E90 BMW 335i 335xi - Sedan