This new genuine original Hongfa pcb relay to 12v is currently on backorder under part number HF115F122ZS4A. Product specifications include 29 mm length, 12.7 mm width, and 15.7 mm height. Further product details include 12 V coil voltage and 8 A max rated current ac. If you need to double-check fit, use Fixit Fox Finder or contact customer services before ordering.