Save time and expense by replacing the part, not the entire harnessBulb simply plugs into socket for ease of installationImproved wiring for long-lasting performanceWeather seal included (where applicable)Improved wiring and highly durable insulation resist the corrosion, overheating and melting that commonly afflict the turn signal and other sockets. Easy to install, Dorman Turn Signal Socket regenerates the signal. Even better: it lasts.