Original quality crankshaft main bearing set (upper & lower shells) with OE number 94810124204, engineered for Porsche 4.8L naturally aspirated and 4.8L turbocharged V8 engines (M48.01/M48.51), widely used in Cayenne, Panamera, and other models. Manufactured to strict OEM standards, these bi‑metal bearings feature a durable steel backing and a high‑performance tri‑metal alloy lining, delivering exceptional load capacity, wear resistance, and fatigue strength.Designed for precise clearance and optimal oil film retention, they reduce friction and vibration while ensuring stable crankshaft operation under high‑load conditions. The upper and lower shells are accurately sized and marked for easy identification and correct installation, matching the original crankcase and crankshaft perfectly.Rigorously inspected for dimensional accuracy, surface finish, and material quality, these original‑quality bearings provide reliable performance, extended service life, and a cost‑effective solution for engine overhaul and maintenance.