New Old Stock PTO Spring-Lok Tractor Yoke - 1-3/8" with 21 Splines.

Fits North American 6 Series PTO.

Weasler PTO Spring-Lok Tractor Yoke part numbers: 100-0621,  1000621,  971-1000621.

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Center of Bearing to End of Yoke - 3-7/8 Inch

Cross and Bearing Cap Diameter - 31/32 Inch / 24.61mm

Cross and Bearing Overall Length - 2-9/32 Inch / 57.94mm

Tractor Yoke Bore Shape - 21 Splines

Tractor Yoke Bore Size - 1-3/8 Inch

Tractor Yoke Lock Type - Spring Lock

Came from a dealership liquidation.  May show shelf wear from prior storage.