This is a A-800-1422 Round Bore Implement Yoke (w/ Keyway & Set Screw) PN: 800-1422Main Description As Following : A-800-1422 Round Bore Implement Yoke (w/ Keyway & Set Screw) PN: 800-1422 Found in Section & Models : Driveline > Driveline Components, Weasler Domestic: 14 Series, Driveline > Yokes, Weasler Domestic: 14 Series Associated Items : New Also This is An Aftermarket Product And : 14 Series Implement Yoke. 1-3/8" round bore with 5/16" standard keyway and set screw. For 14 Series Original Weasler part. Bore: 1 3/8" Replaces: Neapco Part No: 20-9189 Standard Keyway: 5/16"