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GM 12PIN OBD1 to 16PIN OBD2 Adapter Cable. Connectors: GM 12Pins OBD1 male connector; OBD2 16pins female connector. The GM 12 pin Adapter allows you to connect compatible diagnostic tools on a gm vehicle fitted with a 12 pin socket with your existing 16 pin OBD2 tool.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.