MerCruiser 54091 Thru-Hull Exhaust Flange 3" Similar to 35013 & 578851A1 1970-82 Couplers but this has an 11-pin

but this has an 11-pin flat connector plug

Item Details MerCruiser Propeller Shaft 44-66060 / 44-824110 used in all MerCruiser R / MR/ Pre-Alpha Gen 1 Alpha 1 lower units 1970-1990 (some parts here were used a broader number of years)

12" tube length

May need to be cleaned or rebuilt has been sitting for a while

This may or not be the case with this set but there is always a possibility that one is not 100% working

MerCruiser 54091 Thru-Hull Exhaust Flange 3" Similar to 35013 & 578851A1 1970-82 Couplers but this has an 11-pinPart Number(s) Included MerCruiser 54091 (Slightly Angled) Exhaust Hose Flange (Inboard applications) Seems similar to 35013 & 57885A1 but with a slight angle rather than being completely straight 3" Inlet & Outlet (see photos) General Application Compatibility This was generally specific to early MerCruiser MIE (Inboard) applications with log style manifolds that have the exit at the (rear top) of the manifold generally using either the 60427 or