This original AC Delco GM air conditioning pressure cycle switch fits 1986-1992 Buick and Oldsmobile vehicles. It is designed to help regulate the pressure in your car's air conditioning system. The switch is manufactured by a reputable brand, Delco, and comes with interchange part numbers 10042669 and 15-2390. The switch is a perfect replacement part for your car's air conditioning system. It is made of high-quality materials to ensure durability and long-lasting performance. The item is new and has never been used before.