Standard Motor Products Inc. corrosion resistant, REAR, hydraulic brake switch with heavy duty contacts and brass terminals. You can install this switch using wire connections, screw mount or flag mount terminals. 1/8” NPT Male Thread (For best results, we recommend using thread sealing tape.) Fits 1958-Later Harley Big Twin Touring, Softail, Dyna (Except 1973-1977 FX), 1951-1973 45ci Servi-Car, 2002-2006 V-Rod VRSC & 1979-Later Sportster XL Models Replaces HD# 72002-51