NT6789 PTO DRIVE GEAR. For Nuffield 3DL and 4DM tractors with 5-speed gearbox and independent PTO drive gear.

Fitted to Nuffield 4DM with serial number 10388 onwards and all 3DL, 342 and 460 with independent PTO.

Dimensions and specification:

• 17 teeth on PTO gear with outer diameter of 2 13/16″ (71.67mm)
• 19 teeth on input spline
• Bore at rear: 1 3/8″ (35.26mm)

See item number 14 in the illustration.

Fitted to tractors:

• Nuffield: Universal three (3DL), Universal four (4DM)
• Nuffield: 342, 460

Note: this part seals to the main input shaft using three annuular grooves as can be seen in picture 2.