B58 Valve Bilateral Aluminium Cap & Diaphragm Repair Kit. This high-performance repair kit is engineered to precisely replace B58 F-Chassis BMWs between the model years of 2016-2020 as well as a few G-Chassis BMWs of similar model years.. It is specifically designed to resolve common issues with the PCV (Positive Crankcase Ventilation) system in the BMW B58 engine
Features a Durable Billet Aluminium Cap & Enhanced Diaphragm. The CNC-machined billet aluminium cap offers superior strength and heat resistance compared to the fragile plastic OEM part. The included diaphragm is manufactured to exact specifications for reliable performance and longevity.