I wanted to replace the grill set and the older style solid cartridge element in my cook top.

I simply removed the old cartridge by lifting it up and pulling the plug end out. I slid the new coil cartridge with the plug end in its place. The grill replacement was similar. Remove the grll grates, pull out the burner element from its plug position, remove the grill rocks and insert the new coil cartridge in its place. No tools or special skills required. It's like I now have a new cook top.