Anyone use SSdiesel block heater cord or lower radiator block heater

[aquaman0001]

Hello All,
Block heater is not working any nobody local carries the block heater cord. Even the dealership has to order it. Has anyone used the replacement block heater cord from SS? Also, has anyone used the radiator block heater from SS?
Thanks
A

[Kennedy]

I prefer oil pan heater to a block heater. While a block heater helps combustion and heat, it gives a false sense of security as the oil in the pan is still cold and thick.

[aquaman0001]

Installed oil pan heater from Kennedy. Easy install. Engine sounds smooth on start-up. Many thanks for the suggestion.
A