Inteli-Power Marine Electronic Marine Converter / Charger Model PD2040. 3 output, 40 Amps total. Was replaced, but was not the problem with the low voltage issue. It is in good working order. $50
Sea Water Pump 862914-T08 with 862351T pulley. Spare for my 8.1S Horizon SN 0M397160. New condition, installed once to troubleshoot another issue. Sold the boat, so this is no longer needed. Retail is over $600. Asking $300.