Yes it is the deluxe heater but someone took the core out and made a configuration of copper pipe to replace it and I have no idea what the exact size of the original core was. You can't even get an info page on the web for this core. I noticed there are replacement cores for the advance design trucks but when you get to the task force model there is just a big black hole there as if these trucks would never ever need replacement cores. Every one says take your core to a rad shop but you've got to have something and the right one to take.I don't know about other parts of the country but around Atlanta there are no more junk yards,all of these fellas have gone to college and now they call them salvage and recycling centers with an inflated price tag. When you tell them what year and make you are looking for they cut you off and say we don't carry anything that old they were all crushed years ago.