This is a A-804-1420 Square Bore Implement Yoke (w/ Set Screw) PN: 804-1420Main Description As Following : A-804-1420 Square Bore Implement Yoke (w/ Set Screw) PN: 804-1420 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. 1-1/4" square bore with set screw. Original Weasler part. Bore: 1 1/4" Replaces: Neapco Part No: 20-9127