MerCruiser 43-55778A3 120hp 140hp Upper Pre/R/MR/Alpha One 1.98 Gearset Gearcase Transom Plate Please Inspect Pictures to get

Please Inspect Pictures to get the best idea of condition

Throttle Pick-Up bracket assembly (Coupling Assembly) is not broken (53720A2)

This should technically replace the later kind with the Ventilated-gear tooth looking exterior as well

KD3S ---- WD3S

MerCruiser 43-55778A3 120hp 140hp Upper Pre/R/MR/Alpha One 1.98 Gearset Gearcase Transom Plate Please Inspect Pictures to getItem Details All 120hp 2. 5L & 140hp 3. 0L 4cyl applications for Pre Alpha R MR ALPHA ONE Gen 1, so 1970 1990 as a general rule. (You may need to replace the bearing on top of the shaft depending on whether you have a 1970 1982 vs 1982 & Up application as they each used different bearing sizes) (Actually these were also used on Gen II drives 1991 1997) The gear set here is MerCruiser 43 55766 43 55778 > 43 55778A3 (Also Equivalent to 43 55766A2 43