Genuine Mazda MX-6 Alternator

The Mazda MX-6 Alternator keeps the sporty coupe's battery fully charged and provides a steady stream of electricity to the lights, ignition, and cabin devices when the engine is operating. This Mazda unit consists of two pieces made of aluminum with an attached stator ring and a rotor mounted on the shaft to be rotated by a belt attached to the crankshaft, such that engine movement causes the swirling of a magnetic field, which produces alternating current. The same small enclosure contains diodes that immediately transform that AC into the direct current all the circuit boards in the machine require, and heat sinks that maintain the diodes at cooler temperatures. Earlier first-generation Mazda models applied a conventional voltage regulator located externally to the unit to regulate field current and avoid overcharging, whereas subsequent MX-6 models folded that control into the Alternator housing or left it controlled by the powertrain control module, reducing the number of parts and increasing reliability. Depending on the year of production, there is a front bearing that holds the pulley and cooling fan and a rear bearing that holds the shaft adjacent to brushes that supply power to the field coils in the rotor. The common goal of all designs is to convert mechanical energy into clean battery-friendly electricity minute after minute, but the transition to PCM-controlled regulation is the major step in evolution. This Alternator powers all Mazda features, such as the stereo and the fuel pump, without emptying the battery during spirited driving.

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