Posted by Tom Petroff (IL) on Tuesday, February 17, 2009 at 00:33:02 :
In Reply to: Headbolt heater? posted by KenW on Monday, February 16, 2009 at 22:00:03 :
Yes, back in the day before frost plug heaters.
My truck came from MN.,minus the power cord and I had no clue what it was. Brett pointed it out for me.
Was a aftermarket item bought at local parts store and replaced a head bolt,to warm the water. Frost plug heaters were developed later.
TGP