S&S now offers the same high quality Autolite spark plugs that we include with our engines for replacement in S&S and stock engines alike. These long reach resistor spark plugs are a replacement 14mm spark plug. They are the correct heat range for all S&S engines and also fit 1977 and later Harley-Davidson engines. Compatible with any ignition system. Harley-Davidson part number 32311-83. Note: All reference to H-D part numbers is for identification purposes only. We in no way are implying that any of S&S Cycle's products are original equipment parts or that they are equivalent to the corresponding H-D part number shown. S&S Part #: 55-1323

Cross-Reference: The following OEM numbers are provided for reference only and may not be completely accurate.
Harley OEM Cross Reference Numbers:
32342-04
32311-83