Cheap NOS from whatever car... 50 amps

https://www.ebay.com/itm/Mopar-NOS-Ammeter-Gauge-Markd-21259/152739801553?epid=1173302429&hash=item23900069d1:g:y6EAAOSwzJ5XWx1W&vxp=mtr

once again, to become it on the cluster replacement gauge reinstalling your original gauge face

With a Charger born in Chrysler assembly plant in Valencia, Venezuela