Oil Cap

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.

Designed to fix a known weak point for the MINI B3X and B4X engines, the ECS billet aluminium oil filter housing cap is a direct replacement for the factory plastic cap. The OEM plastic part is infamous for cracks, stripped threads, and rounded hex heads—often failing during routine oil changes and turning basic maintenance into a frustrating, time-consuming repair.

The engineers at ECS have designed a precision-machined billet aluminium upgrade that eliminates those issues, delivering strength, durability, and consistent fitment. An integrated drain plug allows you to drain the filter housing cleanly before removal, reducing spills and mess for a faster, cleaner oil service.

Replaces OEM MINI part number 11428575907.

FEATURES

Fixes common OEM plastic failures, including cracking, stripped threads, and rounded hex heads Precision-machined billet aluminum construction for superior strength and longevity Black anodized coating to prevent oxidation Integrated drain plug allows clean, mess-free oil changes Improves serviceability, reliability, and underhood appearance

URO Oil Filler Cap - Multiple BMW Fitments

URO Oil Filler Cap - Multiple BMW Fitments is a premium replacement designed to restore a secure seal on your BMW’s engine. A missing, cracked, or broken oil filler cap can lead to oil leaks, contamination, and reduced engine efficiency. This OE-style cap ensures a perfect fit, maintaining the original look of your engine bay while preventing oil seepage. Manufactured from high-quality, heat-resistant materials, it withstands extreme engine temperatures and exposure to oil vapors. With a hassle-free installation process and a 24 Month Unlimited Mileage Warranty, this cap provides long-lasting reliability.

• Direct-fit replacement for a missing or damaged oil filler cap
• Prevents oil leaks and contamination to maintain engine efficiency
• OE dimensions ensure an exact fit and factory appearance
• High-quality materials resist extreme heat and oil vapors
• Quick and easy installation for hassle-free maintenance
• Backed by a 24 Month Unlimited Mileage Warranty

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.