No, they won’t reuse part numbers. GM did reuse the part number on the faulty ignition switch in the Chevy Cobalt to cover up a part flaw. The engineer was immediately fired once the scandal was uncovered. In the engineering world, once a part has been updated it’s supposed to receive a new part number. In the case of GM, they didn’t know which vehicles had the updated part because the same part # was used as the defective part.If it's anything like the engine names, they'll just reuse numbers
Most of the Japanese cars have been using 10-digit part numbers for years, and Honda uses 11.