Mercruiser OMC 6cyl Inline 165hp 4.1L GM Distributor Assembly Alpha One Stringer Complete Upper & Lower Gearcases Valve Rocker Cover 77681>98706A1 &

Valve Rocker Cover 77681>98706A1 & 71303 is likely very similar but this earlier one doesn't have the provision for the throttle bracket used on 4-BBL Models

Oil Pick-Up Tube Assembly 32-72877A1

Crankshaft Compatibility by year: (this is based on my research and the OMC parts diagrams)

but I am not sure on this

Mercruiser OMC 6cyl Inline 165hp 4.1L GM Distributor Assembly Alpha One Stringer Complete Upper & Lower Gearcases Valve Rocker Cover 77681>98706A1 &Item 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