2010 Ultra Glide 40K. The bike always runs hot in warm weather. Over the years I tried 3 different fans , all it does is blow hot air and NEVER reduces oil temperature. My dealership had HD Oil Cooler $399 plus $300 labor plus oil and filter. After all in about $800Plus……. Then I found UltraCool Oil Cooler, I was hesitant at first. I studied the ONLINE install instructions and it looked pretty simple. Also Youtube videos are very good. I am pretty handy so I figured I can take a chance. The install was so simple that I kept thinking I was missing something. The 3.0 system comes 90% together. I was a VERY easy install. I’m only sorry I did not purchase this years ago. The first ride I took after the I kept watching my Oil Temp Gauge wondering if that blue light was going to come on. Then as soon as the oil was up to temp the Blue light was on, fans kicked in and the oil temp drop 20% in a 5 – 10 minutes. I highly recommend the product. It is well built and a easy install. I called C/S twice with questions about the wiring and they were extremely knowledgeable and helpful. If you have a HOT Harley buy this product. Thank you to all thy guys at UltraCool.