BMW 740i Pinion Bearing ensures smooth torque transfer and is characterized by rock solid reliability. Sitting deep inside the differential, this Pinion Bearing helps to reduce friction so that the rear wheels get even power when cornering. Its hardened steel raceway ensures that the teeth of the gears are kept in line, preventing vibration that can ruin the type of refined ride that people expect from a BMW flagship. Whether your 740i is equipped with the classic open diff or the traction boosting limited slip unit, the same Pinion Bearing supports the precision of the pinion shaft. That interchangeability means that owners of second, third, or fourth generation 740i sedans will not have to search around for special variants to install the component. By holding the proper preload, the Pinion Bearing protects the ring gear integrity, which prolongs the life of the fluid and positively affects fuel economy because less energy is lost as heat. Drivers also get the benefit of added safety, as a stable gear mesh allows a vehicle to be predictable in sudden lane changes or on wet roads when accelerating. If lubricant breaks down and a faint hum is heard, changing the Pinion Bearing before grinding begins will keep costly differential parts out of harm's way. High grade lubricant channels and micro polished rollers allow the Pinion Bearing to withstand extreme temperature variations and long highway cruising. Combined with the balanced V8 output that characterizes the 740i line, those qualities make up for a drivetrain that has been lauded throughout the BMW forums for lasting well past typical service intervals. From daily commuters to executive limousines, each and every BMW 740i enjoys the benefit of this small yet important bearing that provides mile after mile of quiet confidence. Choose a genuine Pinion Bearing and your BMW 740i drivetrain is once again poised, proving again why BMW is a benchmark for luxury performance.
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