Check out the biggest database of Harley Davidson reserve and replacement parts by OEM numbers. In order to find your part OEM number you first have to know the year build of your Harley Davidson bike then the exact name (please refer to the bikes service manual to find out exact bike name) at the end you need to know to which reserve part # list your OEM part (the one that you want to replace) belongs.
It might sound complicated at the first moment but its easy to locate your part number with hd-parts.org reserve part finder. Simple follow step by step and it will take you less then a minute to locate your OEM #.
First click on year build to find your bike: