Description: Improved heat sink and charging capabilities. Fit for Harley Night Rod Special V-Rod 2008-2016. Manufacturer Part Number: Harley 74440-08. Finned case for greater cooling. Higher grade of electric components, direct replacement to your original unit. Plug-and-play, direct fit, easy installation. Specification: Material: Metal Voltage: 12V Size: 135 x 85 x 40mm / 5.3 x 3.3 x 1.6inch Package Includes: 1 Piece Voltage Regulator Rectifier Note: Please make sure this part fits for your bike before order