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1977 Mercury 850 power trim

O

oldisgood

Member
I'm thinking of adding power trim to 1977 Mercury 850 that doesn't currently have it.
I'm not sure how feasible this is.
I assume I need the externally-mounted hydraulic pump, hydraulic lines, and to change the manual lift cylinders to hydraulic ones.
Does anyone know what the associated part numbers are? I couldn't find them referenced on a couple different sites.
Found a guy selling the cylinders who claims they'll fit.
His p'n's are:
power trim mount numbers 45196 and 45195.
Piston numbers 78439

Are these correct for my motor?
Thanks!

 
I can't verify the part Nrs. but here's how you attach the cylinders, they made 2 sizes one for the 650 and 500 (3/4" diameter rod) and ones for the 850 and up (1" diameter rod)

pt-mountingsmall2.jpg
 
You also have to remove the reverse lock assembly from the LU because it's activated by the shifter and don't use the unit without the tilt pin installed (usually in the first hole).
 
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