Product Name:Engine Block Immersion Heater;Freeze Plug Heater. Replaces Part Number:30312,1500W 120V,1500WHEATER,1500WFORD73L,1500W Ford 7.3 L,CEJ-3713-JJDC. Application: Fits Ford 7.3 L Powerstroke Super Powerful F 250 350 F450. Application: Fits CATERPILLAR 1995 & Older 3304 3306;Fits CUMMINS V903, VT903, VT350 Formula VT300 (Alternative installation. Not available on all engines). Application: Fits MACK 865, 866, & 1000 Series EM9-400.
