Mercury Mariner Outboards 45 Jet 50 55 60 HP Models Service Manual, Page 192Get this manual
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Power Trim System Components 1 Trim RodDowel Pin (Upper)Upper Pivot PinRod WiperO-ring .671 inI.D6 Cylinder CapO-ring 1.864 inI.D8O-ring .614 inI.D9 Trim Rod Piston 10- Ball (5) 11- Spring Seat (5) 12