Jagg Oil Cooler Install
By Bob Wallace

1. Here is the oil hose, the hose clamps, and the oil cooler that we needed to install the Deluxe oil cooler. Since we were bolting the oil cooler onto a twin cam, we also had to order a twin cam offset filter adapter.

2. Installing the oil cooler kit was a very simple procedure. We mounted the cooler onto the left frame down tube. The cooler has two mounting tabs on one side of its body and attaches to the down tube with a pair of uralite clamps, which slip around the down tube and bolt to the tabs on the cooler.

3. Before we completely tightened down the two mounting bolts, we checked to make sure the cooler wouldn't interfere with foot control operation.

4. This was the filter adapter required when bolting the cooler up to a twin cam. The filter is designed so that the oil goes through the filter first, then on to the cooler to prevent a restriction in oil flow. We removed the five Allen screws from the adapter, then separated the two halves.

5. We removed the oil filter and drained all the oil.

6. The back half of the adapter was mounted up to the oil filter flange.

7. The oil lines were secured to the outer half of the adapter before it was mounted.

8. Once the seal was placed on the front half of the adapter, the two halves were fastened back together with the five Allen bolts.

9. We replaced the original oil filter with a new K&N chrome-plated oil filter. After filling the filter half way with some fresh oil, it was mounted to the adapter. Then, the two hoses from the adapter were held up to the fittings on the cooler, so we could see where they needed to be cut.

10. After cutting the hoses, they were secured to the oil cooler with the supplied hose clamps.

11. We double-checked all fittings to make sure they were tight, then we filled the oil tank with the recommended 3-1/2 quarts. After running the Night Train for a few minutes, we made sure there weren't any leaks. Before we installed the oil cooler, the Night Train would run anywhere between 220 and 250 degrees on extremely hot days. With the oil cooler installed, the bike's temperature averaged between 200 and 210 degrees, even under the most severe conditions.
Here's the Jagg webpage...
http://www.setrabusa.com/jagg files/jagg pages/cooler.htm
Source:hotbikeweb.com
Also take a look here...
Jagg 10 row Oil Cooler - Harley Davidson Community