SeaStar I Hydraulic Steering Helm Pump Vintage 1.7Cu HH5201 Early Couplers Mercury 350M-1

Mercury 350M-1

MerCruiser 79000 Transom Plate Assembly (In-Line Engines with trim sender on gimbal housing Only)

This is a Mercury Mark 20 MD624D Propeller

Force 35hp 1988-1991

Manufacturer Part Number: SSC13420

SeaStar I Hydraulic Steering Helm Pump Vintage 1.7Cu HH5201 Early Couplers Mercury 350M-1Part Number(s) Included "Sea Star I" Hydrualic Steering Helm (Early version of modern helms) HH5201 (3 8 NC Threads) The Sea Star II (HH5202) was the same in external dimensions, but had a larger internal displacment as well as a more robust 1 2 NF threads for the steering wheel shaft which is an easy way to tell the difference between the two General Application Compatibility From an Early Teleflex Steering System 1. 7cu. in displacement Relief Valve