Compare Maximum number of 4 items selected Zerostart 400 Watt Engine Heater - 3100065 Part #: 3100065 Line: ZRO Zerostart 400 Watt Engine Heater 1 Year Limited Warranty Thread Size: 1-3/4 Inch Voltage (V): 115 Volt Wattage (W): 400 Watt Amperage (A): 5 Amp Engine Heater Type: Frost Plug Show More Show Less
Compare Maximum number of 4 items selected Zerostart 400 Watt Engine Heater - 3100138 Part #: 3100138 Line: ZRO Zerostart 400 Watt Engine Heater 1 Year Limited Warranty Thread Size: 3/4 Inch NPT Cord Length (in): 60 Inch Voltage (V): 120 Volt Wattage (W): 400 Watt Amperage (A): 3.48 Amp Cord Included: Yes Element Mounting Size (in): 3/4 Inch Engine Heater Type: Threaded Immersion Show More Show Less
Compare Maximum number of 4 items selected Zerostart 400 Watt Engine Heater - 3100133 Part #: 3100133 Line: ZRO Zerostart 400 Watt Engine Heater 1 Year Limited Warranty Thread Size: 1-1/2 Inch Type: Frost Plug, V-Lock Voltage (V): 120 Volt Bore Diameter (mm): 40mm Wattage (W): 400 Watt Amperage (A): 5 Amp Engine Heater Type: Frost Plug, V-Lock Show More Show Less