Welcome to 112 Certified, your premier local used car dealer on Route 112 in Port Jefferson, NY, where you'll find the best used car deals in Long Island. Discover a wide selection of affordable used cars and certified pre-owned vehicles tailored to meet your diverse lifestyle needs. Whether you're looking to buy used cars or SUVs, our hassle-free buying process features transparent pricing and detailed vehicle info. Take advantage of our flexible used car financing options, including zero down for qualified credit. Value your trade and drive away in your ideal used SUV or car today. Trust 112 Certified for top-quality pre-owned vehicles and exceptional customer service.