MerCruiser 814819A3 Alpha One Gen II U-Joint Yoke Outdrive Upper Unit 1991-Up Flame Arrestor Compatible / Equivalent Part Numbers:

Compatible / Equivalent Part Numbers: OMC 983902 / 0983902

OMC 586283 / 0586283

Superseded / Equivalent / Possibly Related P/N: 32732 / 46421A2 / 55429A3 (Location of oil breather changed on this model)

The 1996 models using 3850041 (metric thread) was different because the 1996 oil pan has different threads for the oil drain block

MerCruiser 120hp / 140hp / 165hp 4-cyl & 6-cyl applications 1969 & Up

MerCruiser 814819A3 Alpha One Gen II U-Joint Yoke Outdrive Upper Unit 1991-Up Flame Arrestor Compatible / Equivalent Part Numbers:Item Details & Compatibility This is a Yoke Assembly for Alpha One Gen II (1991 & Up) Also this would be compatible with 1971 1990 V8 305 350 Stern Drives that required the longer edition yoke (4cyl & 6cyl engines from that time 71' 82' used what was called a "short yoke" that measures around 8 1 8" The yoke style was used in the years described above regardless of engine gear ratio of outdrive. I. E. 120hp 2. 5L 140hp 3. 0L 165hp 4. 1L, 470 165hp 3.