The Premium CarQuest Vehicle Solutions line of vehicle electronics are designed for OE form, fit and function for both import and domestic vehicles. The transmission oil pressure switch monitors and relays the oil pressure inside the transmission to on-board computers, helping to ensure smooth and proper timing, shifting and operation. Properly pressurized oil delivery is critical to the transmission, and when this system fails to operate properly the on-board computers may throw a code and illuminate a check engine light. A failing or improperly functioning transmission oil pressure switch will provide erratic or inaccurate readings to on-board computers, affecting performance and system function. Product Features:Designed and manufactured with high quality materials, industry leading electronic components and strict quality controls. Engineered to meet or exceed OE performance and to meet the uncompromising demands of service professionals.Direct fit replacement matches proper OE fit, form, and function and ensures trouble free installation of your transmission oil pressure switch.Polyimide film diaphragms offer high temperature performance and enhance life-cycle durability. Oil-resistant O-rings and seals, as well as OE-grade thread-sealant match OE design. From design to manufacturing, the use of proper materials, components and multiple glued seals help prevent oil leaks.All units are 100% tested using advanced end-of-line equipment that pressurize the switch, confirm proper calibration and functionality, and check for leaks to ensure each switch meets manufacturing specifications before packaging.