MerCruiser 55103 52779A2 Power Steering Actuator 470 485 4cyl 1979-1982 Early Couplers Crankshaft hole measures 2-1/2"

Crankshaft hole measures 2-1/2"

Tested & working (Spark Tested with coil setup as described online)

This is one of the more unique upper casings as it was basically an early Gen I upper that didn't have the square horizontal stabilizer farings

This would have been found on 2-Barrel Models Only

MerCruiser 55103 52779A2 Power Steering Actuator 470 485 4cyl 1979-1982 Early Couplers Crankshaft hole measures 2-1/2"Part Number(s) Included MerCruiser 55103 Power Steering Cylinder Assembly (Transom Mounted) Replaced by 85618 & 85618T MerCruiser 52779A2 Valve Assembly Replaced by 816458A1 MerCruiser 55106 Transom Plate Mounting Bracket MerCruiser 55114 Rod End Clevis MerCruiser 60502 Power Steering Mounting Bracket General Application Compatibility Would have been found on MerCruiser 470 & 485 applications 1979 1980. These connection ends were specific to the early