Sure looks like one to me, I had one so I could leave my scan gage plugged in
Agua Dulce, So.California
1968 2.2L Ecotec Power Baha Bug, king coils, etc.
1950 F1 street rod
1949 F1 stock V8 flathead
1948 F6 350 chevy/rest stock
1953 chevy 3100 AD for 85 S10 frame
1998.5 Dodge 2500 4x4 Cummins, p etc.