MerCruiser 65635A16 65635-C3 Valve Rocker Cover GM 3.0LX 4cyl 1990-1998 Flywheel 1990: All Models for Filter

1990: All Models for Filter To Pump line

but this is not uncommon with Johnson / Evinrude parts vs diagram indicated numbers

315709 / 0315709 Hydraulic Shift Piston

so 1970-1990 as a general rule

MerCruiser 65635A16 65635-C3 Valve Rocker Cover GM 3.0LX 4cyl 1990-1998 Flywheel 1990: All Models for FilterItem Details Valve Cover Part Numbers 65635A16 (Stamped 65635 C3) > which was superseded to 65635A8 ( Stamped 65635 C2 and is missing a threaded mounting boss) Good Condition, original paint, removed from a MerCruiser 140hp 3. 0L 4cyl Model Aluminum Construction PLASTIC SHIFT ARM COMPONENTS (Early versions had aluminum shift arm components and were generally stamped 65635 C3) Generally used 1990 1998, with MerCruiser 140hp models with the shift