Steering shaft with pinion gear for most 200/400/3000/4000 series tractors. Measures 23 7/8" overall. Later production 3000/4000 series tractors require a 25 3/8" length, order p/n C33940. Not for early models with steering wheels keyed to the shaft and retained by a nut, this shaft is drilled to mount the steering wheel with a roll pin. The pin is p/n 138-143.