The OTC 3475 Custom Cruise III Tester is a used automotive diagnostic tool designed for GM vehicles. It comes with adapters and manuals to aid in testing and diagnosing AC systems. The brand of the tool is OTC and the manufacturer part numbers are 3475, 3475-02, and 3475-03. OTC 3475, 3475-02 3475-03 AC Custom Cruise III Tester & Adapters, Manuals GM Sold as shown with instructions GM light trucks since 83 tester, adapter for C, K truck and B car body, and 1989 adapter
