MerCruiser 42260A6 42259-C Gimbal Housing Transom Plate Alpha One 5-Bolt 1988-90 New Parts OMC Part Number 984646 /

OMC Part Number 984646 / 0984646 Oil Cap Assembly

The earliest 1986 version has top holes located in more pronounced flanges that are more "independent" from the casting

Removed from a 1981 OMC 3

No middle piece for this

This one has three o-ring grooves but will work fine replacing ones with 2-grooves on Yoke

MerCruiser 42260A6 42259-C Gimbal Housing Transom Plate Alpha One 5-Bolt 1988-90 New Parts OMC Part Number 984646 /Item Details MerCruiser Gimbal Housing Plate 42259 C (stamped) 42260A6 is generally the part number indicated for online parts manuals, but there is a bit of confusion that gimbal plates stamped 42259 have 4 holes for the exhaust flange, and the 42259 C have 5 holes would be applicable to the late 80's and early 90's V Engine boats that use the 4" Y pipe. Any 4 cyl MerCruiser models (120 140 470) from 1983 1990 can safely used a housing stamped 42259