Premium five pin unit insures reliable starting performance for 1980 and later models. Ultrasonically welded dust-proof case. Replaces plastic or metal square bodied plug style relay. Replaces OEM no.31506-79B/C. Fits XL 80-E93, FX L84-86, FL 80-84, FLT 80-E93, FLHS 93, FXD 91-E93, FXR 82-E93, FLST/FXST 84-E93, FXWG L84-86 and FLTC-U/FLHTC-U 89-94 sound and intercom system front speaker relay.