Steering Pump Reservoir Cap | For BMW E46 E90 E60 X3 X5 | Replaces MINI

This aluminum cap replaces the plastic BMW power steering reservoir cap. It's made from a solid piece of 6061-T6 billet aluminum. This gives it a stronger, more lasting seal than the original, which can crack or leak over time. Features and Benefits - CNC-machined 6061-T6 aluminum - This resists cracks and warping that often affect the factory plastic cap, stopping fluid leaks. - Anodized finish - It protects the aluminum from corrosion caused by power steering fluid and engine bay heat. - Knurled grip surface - This gives you a secure hold for easy opening and closing, even if your hands are greasy. - Includes new O-ring seal - This makes sure you get a tight, leak-proof fit right away, restoring the reservoir system's seal. Applications - Upgrading the brittle OEM cap on a BMW E46 or E90 to prevent future issues. - Replacing a cracked or leaking cap on a Mini Cooper R53 to fix a power steering fluid leak. - A part you need to install when replacing a bad power steering pump to make sure the new system is sealed correctly.