This item for sale is a Mercury Marine Stud.
Mercury Marine PN: 16-54177
Fits:
120hp GM 153 I/L4 1964-1972 S/N: 1666601 THRU 3377340
120hp GM 153 I/L4 1972-1978 S/N: 3377341 THRU 5192048
120hp GM 153 I/L4 1979-1982 S/N: 5192049 THRU 6229717
120hp GM 153 I/L4 1983-1986 S/N: 6229718 THRU 0B531853
140 GM 181 I/L4 1968-1972 S/N: 2508261 THRU 3332137
140 GM 181 I/L4 1972-1978 S/N: 3332138 THRU 5157668
140 GM 181 I/L4 1979-1982 S/N: 5157669 THRU 6229717
140 GM 181 I/L4 1982-1986 S/N: 6229718 THRU 0B450800
160 GM 250 I/L6 1967-1969 S/N: 2048022 THRU 2770031
165 GM 250 I/L6 1970-1978 S/N: 2770032 THRU 5178958
165 GM 250 I/L6 1979-1981 S/N: 5178959 AND UP
2.5L GM 153 I/L4 1987-1989 S/N: 0B531854 THRU 0C856558
3.0L GM 181 I/L4 1987-1989 S/N: 0B450801 THRU 0C856558
WARNING: 