MerCruiser 1623-8266-S 1623-5356A4 Pre-Alpha Lower Unit Gearcase Housing 1970-82 Blowers & Vents This style does not have

This style does not have the molded hose retainer as some early styles did not have these

625" outside diameter

OMC Stringer 400 & 800 Stern Drive applications 1978-1985 (some 1986 boats) with GM engines EXCEPT 454: GM 2

Heat exchanger tube 910161 / 0910161 (FYI the part number of the piece bolted into the intake manifold is GM 6269950)

(more important for engines with tubes that had brass blocks & Metric (M12) Banjo Bolts on the engine for sucking the oil)

MerCruiser 1623-8266-S 1623-5356A4 Pre-Alpha Lower Unit Gearcase Housing 1970-82 Blowers & Vents This style does not havePart Numbers Included Stamped Part number is 1623 8266 S which is just the updated version of 1623 5412 that has the flat edges found on the horizontal stabilizer found on the 1982 models General related part number found in manual is 1623 5356A4 (MC I & R empty housing) and also slightly related is 1623 4110A6 (Whole assembly) Item Details Overall good condition, some damage to the skeg, but ready for all of your internals. Races are still installed