Main and Rod Bearing Set +0.25mm Infiniti QX30 Q50 Q60 2.0L M274 12117HG00G

The main bearings are the foundation of your engine's bottom end, ensuring the crankshaft rotates smoothly under the high-torque demands of the turbocharged M274 engine. Over time, contaminated oil or high thermal stress can degrade the bearing surface, leading to a loss in oil pressure and potentially catastrophic engine failure. This premium standard-size replacement set, including the thrust washers, is engineered to meet original Mercedes-design specifications for the Infiniti Q50, Q60, and QX30. Built with advanced multi-layer materials, these bearings provide superior fatigue resistance and load-carrying capacity, making them an essential component for any professional engine refresh or overhaul.