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Found on most OMC V8 8-cyl engines 1986-1990 with the older style wiring wire harness system 5
This one has casting number 73020 (Essentially eqvivalent to 73020C
Used from 1977-1985 on virtually all OMC 2
but overall good condition
MerCruiser 87173A5 87173A10 Trim Cylinder Ram Power Tilt 1978-1982 External Line Blowers & Vents Found on most OMC V8Part Number(s) Included MerCruiser 87173A5 Trim Cylinder Assembly (Pre Alpha External Lines Style 1978 1982) Stamped 87173 > Superseded to 87173A10 These are very similar to the cylinders commonly found on applications before 1978 but is different because of the external line running to the rear of the cylinder vs both of the connections being right next to eachother. General Application Compatibility MerCruiser Pre Alpha Applications 1978 1982 120hp