Main and Rod Bearing Set Infiniti QX30 Q50 Q60 2.0L Turbo M274 12117HG00G

Internal engine bearings are essential for the longevity of the Mercedes-designed M274 engine found in Infiniti platforms. Over time, heat cycles and oil degradation can lead to bearing fatigue, resulting in reduced oil pressure and potential engine noise or vibration. If left unaddressed, worn main or rod bearings can lead to severe crankshaft damage. This premium replacement set is engineered to meet the strict tolerances required for turbocharged 4-cylinder engines, providing a smooth rotational surface and restoring critical oil clearances. Installing this high-strength set during an engine refresh or overhaul ensures the bottom end remains stable under the boost pressures typical of the Q50 and QX30 models.