PartsSquare 4pcs H4 9003 To H13 9008 Male to Female Pigtail Headlight Conversion Harness Socket Quantity:4 piece (left side and right side wire harness) H4 / 9003?male adapters to?H13/ 9008 female adapters Pre-Wired for Plug and Play. No need to modify the stock wires at all Ceramic plug (can withstand up to 1800 Fahrenheit