These American-made power rectifier/regulators are manufactured utilizing the latest state-of-the-art surface-mount technology. Unlike other products on the market today, these new rectifier/regulators are made with screen-printed circuit boards and ceramic components, which lower operating temperatures and ensure longer life with no temperature-related failures. The exclusive 'High Voltage' limited warranty effectively extends coverage to one full year from date of installation. Fits all Big Twin models 1989-2005, With 32 amp. Alternator. Replaces (OEM 74519-88)