I purchased the complete heater element and housing assembly as I do not have the wherewithall to troubleshoot the individual components. It was wise as was very easy to install. Installation instructions did not come with the part; however, knowing what I was dealing with from having replaced the belt earlier last year, I knew what the part looked like without pulling my dryer apart. I initially removed the part from the box and then unplugged the dryer. From there, I removed the front of my dryer to confirm that everything matchedup. I then drew out a diagram (rough sketch) of the part on the dryer so that I knew what went where (screws, colored wires, etc). I then used a socket set to remove th screws and disconnect the wires, then was able to put the new part in. The only thing that I used the wrench for (a monkey wrench) was to provide leverage to fit the one end of the housing into the fitting at the back of the dryer - the part arrives more elipticly(sp) shaped than the perfect roundness so it took a little extra effort to get that in but only took a couple of minutes. I reconnected everything and plugged it back in and it has worked beautifully, drying items much faster now and my 'delicate' heat is now functional (never has worked since I received the dryer 4+ years ago). Aside from doing the sketch, it was a 20-30 minute install in total.