Mercruiser OMC 6cyl Inline 165hp 4.1L GM Distributor Assembly Alpha One Stringer Complete Upper & Lower Gearcases but I am not sure

but I am not sure on this

ALPHA GM 454 V-8 1986-1988 0A631894 THRU 0B785148

0L 4-cyl 140hp

The threads on these are "fine-thread" FYI

but 1971-1980 for some of the other parts part of this complete assembly on 50hp

Mercruiser OMC 6cyl Inline 165hp 4.1L GM Distributor Assembly Alpha One Stringer Complete Upper & Lower Gearcases but I am not sureItem Details Removed from a 1974 Mercruiser 165hp 4. 1L (also compatible with OMC from that time period, these both are the same blocks and used the same distributor) Part Number Delco Remy 1112621 6A21 (52277, 58205, 62419, 72623, 62419, 72623, 62426, 81192) These were the same and interchangeable over all of the different years this 6 cylinder engine was produced. This is an earlier model of this distributor because of the mounting for the