3-Prong Thermal Flasher - 6 Volt - Negative Ground
3-Pin Turn-Signal Flasher for vintage vehicles with a NEGATIVE GROUND 6 Volt system.
This flasher is designed for vehicles with negative ground system, i.e. where the car's ground is connected to the negative terminal of the battery.
Same as Napa 535
Please review the specifications for suitable wiring harness or mounting bracket.