J1937 Type 2 Diagnostic Plug

J1937 Type 2 Diagnostic Plug



Purchasing a 2016+ model truck? If so, you will need this plug to maintain compatibility with your Bully Dog device. 2016 and later model vehicles now contain the new high-speed J1939 Type 2 plug system. We have developed this product in case you choose to upgrade, so your Bully Dog device can continue working hard for you



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