Heat-treated and stress-relieved for endurance under high pressure

** We recommend sizing one size up as they shrink slightly after drying

as the original cylinder head screws elongate during operation and the cylinder head can lift off

The all new Precision Turbo Sportsman 7480 turbocharger features a NEXT GEN

Genuine BMW Rear Main Seal, BMW B48 3.0 Heat-treated and stress-relieved for enduranceThe rear main seal, also known as the rear crankshaft seal, is a crucial component in an engine. Genuine BMW Part Number: 11148664904 Purpose 1. Prevents Oil Leaks: The primary function of the rear main seal is to prevent engine oil from leaking out of the rear end of the crankshaft. It seals the gap between the crankshaft and the engine block or the transmission housing, ensuring that the oil remains within the engine. 2. Maintains Oil Pressure: By