Block heater for a 5.3ltr

[scoobyxj]

Anyone know the part number? Amazon shows a few for GMs but not specifically for the 5.3. Rock Auto doesn't show any and all I can find at Autozone are tank style.

 

[clandr1]

A quick google search turned up this thread with some relevant info and part numbers. However, it seems that the GM block heater doesn't work unless the temp drops below 0F.

http://www.gm-trucks.com/forums/topic/47527-53l-engine-block-heater/

 

[scoobyxj]

A quick google search turned up this thread with some relevant info and part numbers. However, it seems that the GM block heater doesn't work unless the temp drops below 0F.

http://www.gm-trucks.com/forums/topic/47527-53l-engine-block-heater/

Good find. I was on my phone when I searched, and it didn't find that....