The Crankshaft Pulley links the engine crankshaft to belt-driven components so the components get rotational power. The pulley also reduces engine vibration. The Toyota Crankshaft Pulley is connected to the crankshaft hub and contains an inertia ring bonded with a rubber layer, whose harmonic-balancer design absorbs torsional pulses and keeps the shaking in check to ensure a smooth-running Highlander engine. The Crankshaft Pulley rotates when the Toyota engine's serpentine belt wraps around component pulleys to allow the alternator, power steering pump, and air conditioning compressor to draw engine torque. The proper operation of the Crankshaft Pulley relies on belt tension from other tensioner and idler pulleys. When these components wear, slipping, noise, and heat can overload the Crankshaft Pulley. If the rubber malfunctions, the Crankshaft Pulley cannot dampen and vibration will increase. In all Toyota Highlander applications, it combines the distribution of power with control of vibration, making efficient component use essential for smooth engine operation in all Toyota Highlander vehicles.
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