GM 12345926 is a fluorescent tracer dye designed for use in automotive air conditioning (A/C) systems, particularly those using R-12 refrigerant. It is a New Old Stock (NOS) OEM (Original Equipment Manufacturer) part, which means it was factory-approved for older GM cars and trucks. eBay eBay +1 Based on its, it can be used in: Vehicle Types: Older model cars, trucks, and SUVs, primarily those from the General Motors lineup. System Type: A/C systems containing R-12 refrigerant. Function: It is injected into the system to circulate with the refrigerant and oil to pinpoint leaks using a UV (ultraviolet) light
