MerCruiser 814819A3 Alpha One Gen II U-Joint Yoke Outdrive Upper Unit 1991-Up Flame Arrestor Other notable parts: 510188

Other notable parts: 510188

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

1250 125hp etc

Basically this would have been found on MerCruiser (MC-I "120hp" "140hp" "165hp" 470 888 898 etc

MerCruiser 814819A3 Alpha One Gen II U-Joint Yoke Outdrive Upper Unit 1991-Up Flame Arrestor Other notable parts: 510188Item 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.