Webasto Diesel Water Coolant Antifreeze Parking Heater Thermo Top Evo 12 v 5 kW

This worked very well, I installed on a 15L Cummins, last round of cold, block was 22*F, outside temps 17*F, 1hour run time, block warmed to 72*F, truck started like it was summer time.It does not get 5 stars, the installation instructions were lacking esp pertaining to wiring. The programing says there are 3 programmable times, but you can only set it to run 1 of the programmed times.I will and do recommend this product to others who dont have the options to plug in block heaters.I will purchase more of these.

I missing a part for one hot wire and 3 communication wires

Excellent product, prompt delivery and customer support was great about answering questions.