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Mechman high output alternators · Authorized dealer
The GX470 is a fixture at overland gatherings, usually wearing a rooftop tent, a fridge slide, amber camp lights and a ham radio. A Lexus GX470 high output alternator keeps the 4.7L V8 ahead of those loads between camps. Mechman lists two units for the 2003-2009 GX470: a 320 Amp unit and a 240 Amp unit.
A loaded GX470 can spend days away from shore power. The fridge runs around the clock, camp lighting comes on every evening, radios and navigation tablets stay powered, and a second battery stores what the alternator puts back during the drive. When daily drives are short or slow, the alternator has limited time to refill everything. A Lexus GX470 high output alternator shortens that recharge window, so the house battery is ready again by the next stop.
Both Mechman high output alternators fit the 2003-2009 GX470 with the 4.7L V8. Confirm your year and engine in the vehicle finder above the products.
These units overlap with fitments on the Lexus LX470 and Lexus GS430 pages. Pair your alternator with a deep-cycle house battery from our batteries collection, and see every fitment on the Lexus alternators page.
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