I have found an engine heater for those folks in the colder areas which don't depend on 110 VAC plug it in block heater. Now these are somewhat pricey but are selfcontained on the truck using diesel fuel to fire the heater.
Check out this company;
http://www.lubespecialist.com/espar1.htm
Complete D4 or D5 heater kit $925.
there are specific kits for the 12V & 24V engines. .
Check out this company;
http://www.lubespecialist.com/espar1.htm
Complete D4 or D5 heater kit $925.
there are specific kits for the 12V & 24V engines. .