Upgrade your classic Cadillac with the premium Engine Harness from Lectric Limited. Designed specifically for the 1966 models of Fleetwood, Seville, DeVille, and El Dorado, this top-quality wire harness ensures reliable performance and seamless integration with your vehicle’s electrical system. Featuring an added seat warmer function, this harness not only enhances your driving comfort but also outperforms generic alternatives in longevity and reliability.