5 Plug with sealing washer(1) 4AN to 1/8npt Adapter Fitting(1) Stainless 1/8 npt Plug*

This shaft is designed with an exclusive square key lock system

O-ringing an engine cylinder head for high-performance

Sold as a set - Includes Bank 1 and Bank 2 Gaskets

Complete with OEM-Style “Quick-Connect” Water Connections and Sensor Ports

Genuine BMW Front Main Seal, BMW S58 1301414 5 Plug with sealing washer(1)The front main seal, also known as the front crankshaft seal, plays a critical role in the proper functioning of an engine. BMW Part Number: 11 11 8 664 905 Purpose 1. Prevents Oil Leaks: The primary function of the front main seal is to prevent engine oil from leaking out of the front end of the crankshaft. It seals the gap between the crankshaft and the timing cover or the engine block, ensuring that the oil stays within the engine. 2. Maintains Oil