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A direct-fit high-output alternator for the 2007-2009 Acura MDX 3.7L V6. It bolts into the stock alternator location and uses a factory-style plug, so the OEM harness connects without adapters and the stock regulator keeps the factory voltage set point. A smaller pulley spins the unit faster to reach its full output, which means you must fit a belt 1/2 to 1 inch shorter. It suits MDX owners running extra electrical load, such as big audio systems, winches or accessory lighting, who have outgrown the stock alternator. Against generic remanufactured units, the appeal is the drop-in fit and the option of a different voltage regulator; the trade-offs are the shorter belt and the extra charging wiring that high-output setups usually need.
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This is a direct-fit, high-output alternator for the 2007-2009 Acura MDX with the 3.7L V6 engine. It mounts in the stock alternator location.
It has a factory-style plug, so the OEM plug connects directly to the alternator. With an OEM-style regulator, it runs at the factory voltage set point. A different voltage regulator is needed for a specific charging voltage set point, and it must be purchased separately to install the alternator.
The alternator comes with a smaller pulley, which spins it faster than a larger pulley and can help it reach its maximum output. This pulley requires a belt that is 1/2" to 1" shorter. Upgrading to a high-output alternator requires the Big 3 wiring upgrade, and 1/0 100% copper wire is recommended.
