Mercury Mariner 78439 76509A3 Outboard Power Trim Tilt Cylinder Ram Piston Transom Plate so not a big deal

so not a big deal to replace everything

Found on Most 4

5L 153cid / GM 140hp 4cyl 3

75158T Steering Cable Guide tube

Mercury Mariner 78439 76509A3 Outboard Power Trim Tilt Cylinder Ram Piston Transom Plate so not a big dealPart Number(s) Included Power Trim Cylinder Ram Piston 78439 76509A23 92194A14 91294A20 (Port or Starboard) Please see NOTE in other Details section General Application Compatibility Some 1970's & 1980's Mercury Outboards (Check Your parts diagram or match the part on your outboard) May Work on These Horsepowers 40hp 50hp 60hp 70hp 80hp 800 90hp 900 100hp 1000 115hp 1150, 125hp 1250 150hp 1500 (and possibly others) Just Make sure the stamped number