Review on Zerostart 3500043 International Caterpillar Approved by Troy Robinson

Today I installed the block heater, started the truck to warm up and top up the coolant level, plugged it in and left it in the lot all day. 22:00 went and checked the temperature sensor, the block is warm. I'll update after winter and see how he sees the original Ford heater block was in the truck. I plug it in every winter since I had a 2003 truck, died this December, been in a truck since 1998, see how this one holds up, I never plug in a cold engine heater block. always hot on the way back.