Description
WL Series weathertight three-phase thermosiphon engine heaters, 2500–5000 Watts, for 600–1650 CID (9.8–27.0 L) engines. Each model is offered without a thermostat and with a factory-installed fixed-setting temperature sensor (numerical code 10, 100°F ON / 120°F OFF). All 3-phase heaters with a thermostat must use a control box (see Control Systems page 30). Weathertight enclosure. 1″ NPT female inlet and outlet.
- Voltage: 208 V, 240 V, 400 V, 480 V, 575 V
- Watts: 2500 W, 4000 W, 5000 W
- Thermostat: None, Fixed 100–120 °F
- Phase: 3
- Available configurations: 30 models / SKUs
Select the required option above to order the exact model — each configuration ships as its own HOTSTART part number.





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