I've had a leak at one of my heater core hoses lately, and I wanted to find the correct part number to buy a replacement. It turns out it's a little bit of a pain, so I created this guide to explain what each hose is, what the part number is, and provided some easy purchase links. I also drew out the entire cooling system at the bottom to make understanding the flow of coolant and finding leaks a bit easier. You can find these hoses by clicking on one of my links, or Googling the UPC code or part number I've listed. Not everything is on Amazon, but I put part numbers for everything so it shouldn't be a problem. Note: If you purchase your supplies from my Amazon links, it will support this website at no extra cost to you. : ) Thank you. Upper & Lower Radiator Hoses Upper Radiator Hose and Lower Radiator Hose Locations This is kind of a weird diagram, because it's from the perspective if you're standing inside the engine bay. The upper radiator hose connects ...