Anode Trim Tab
OEM: Mercury
Replaces: Mercury 31640Q4 | 316404 | 31640B4 | 31640A4 | 316403 | 31640A1 | 72436A1 | 31640 | 31640A2
For 1962-2013 1 Drive, EZ Shift, MC-1, MC II/TR/TRS, R/MR/Alpha One, Alpha One-SS, Alpha Gen II & SSM gearcases.
also crosses with:
Sierra: 18-6011
GLM: 12670
UPC: 840080464190