Zerostart 3600008 Replacement Cordset for Heavy Duty Immersion Heaters and Engine Block Heaters, 6-Feet | 120 Volts Engineered and tested to withstand the extremes of temperature, moisture and vibration Single heavy duty cord with male plug and silicone female connector Works on heavy duty heaters 120 volts; 6 ft. (1.8m); 16 gauge; Plug Type: 120 Volt, 15 Amp Wire type: 16/3 HPN; silicone connector: right angle; pin distance: 0.360", pin diameter: 0.138"