New zinc trim tab and new bolt. It replaces Mercury part #'s 31640, 31640A1, and 31640Q4, 31640T6.
This anode/trim tab is for use on all inline 3, 4, and 6 cylinder Mercury outboard engines as well as Mercury V6 outboards.
Also fits MerCruiser models R/MR/Alpha One (Sterndrive and Transom Assembly 1983-1990) & prior drives; Alpha One, Gen II (1991-up).
15.00 shippedAttachment 206491Attachment 206492

