Mercury 21-77207 21-42863 Crankcase Bleed Fitting 70hp 3cyl 110 75 9.8hp 7.5hp Internal Engine Parts but you should be able

but you should be able to swap this right in

Chevy GM 4

Might work on other models from this time period 60-69

Hopefully you are just replacing elbows with the same part number

most of the individual parts here were used on some subsequent years

Mercury 21-77207 21-42863 Crankcase Bleed Fitting 70hp 3cyl 110 75 9.8hp 7.5hp Internal Engine Parts but you should be ablePart Number(s) Included Mercury 21 77207 Crankcase Bleed Fitting Replaced by 21 42863 General Application Compatibility Removed from a 1978 Mercury 700 70hp 3cyl Two Stroke Outboard S N 4977956 Not completed at this time and hopefully will be added in the future. If you have any questions on compatibility please contact us or check with an online parts manual. Other Details Freshwater Used Parts Overall Good Condition! Purchase with confidence! May