How many labor hours total is it to replace Heater Core?

JBryan072012, this is one of the bigger jobs labor cost wise. You are looking at about 6hrs for labor alone. Until you get rich enough to purchase a labor guide, you might want to use this free service. Also they do accept donations, you do not have to. Hope this helps, good luck.

"Took me 2.5 hours on my '03 1500HD...

maybe do it yourself?"

Great job buddy I hope mine only takes that long , what do you think 2009 Hyundai Accent , how long ?