Review on 💪 Get Enhanced Performance with Standard Motor Products SS581T Solenoid by Neil Biondo

The T series is the cheap version of SMP and it shows. The solenoids arrived on time. I put it in and the starter started on its own as soon as the ground was connected. Keys off, all circuit breakers were off, and he turned around. I guess I checked it with a multimeter and the relay is stuck in the closed position meaning the S pin is doing nothing and the STARTER pin is always hot. Save your money and buy a reputable solenoid. I got Motorcraft from another seller for just a few dollars. It works very well and its weight is noticeably higher. This is a 1969 Mustang at 351 watts.