Torque Stats

[OakHillFarmer]

Does anyone know the torque stats for the JD 4120, 4320 and 4520? I can't find these stats online and I want the exact numbers for comparison. The dealer is closed but I'll call tomorrow if I can't dig them up.

I want the max torque at rated engine speed for an accurate number.

Thanks,
Mark

 

[RRacing]

Hi Mark,

4120 is 91 LBS-FT at rated speed and 109 LBS -FT at 1440 RPM.
4320 is 102 LBS-FT at rated speed and 127 LBS-Ft at 1440 RPM.
4520 is 113 LBS-FT at rated speed and 141 LBS-FT at 1440 RPM.
4720 is 124 LBS-FT at rated speed and 155 LBS-FT at 1440 RPM.

I hope this helps.

Jim

 

[Tarheelman]

I think I have your answer per the twenty series brochure as follows:

Engine torque at rated speed-
4120 - 91 ft-lb.
4320 - 102 ft-lb.
4520 - 113 ft-lb.

For comparison they also list Max torque (@ 1400 rpm)

4120 - 109 ft-lb.
4320 - 127.5 ft-lb.
4520 - 141 ft-lb.

I hope this helps.