SMA Products IMPLEMENT YOKE - 12 SERIES - 1-3/8" ROUND - 971-8001222. IMPLEMENT YOKE - 12 SERIES - 1-3/8" ROUND TechSpecs: Brand: Weasler Center of Bearing to End of Yoke: 3-1/2 Inch Cross & Bearing Cap Diameter: 1-1/16 Inch / 27.00mm Cross & Bearing Overall Length: 2-1/2 Inch / 63.50mm Implement Yoke Bore Shape: Round Implement Yoke Bore Size: 1-3/8 Inch Keyway Size: 5/16 Inch North American PTO Series: 12 PTO Product Category: Yoke PTO Product Sub Category: Implement Yoke Interchanges: A121120800-122212N225340-1224 A121120 800-1222 12N225 340-1224 This is an aftermarket part.