Tillman John Deere JDH-3C JDH-3D Steering Valve Adjustment Tool Alt.
Application: John Deere 3020, 4000, 4020, 4320, 4520, and 4620 tractors
This one tool can be used on 6 different tractors for adjusting the steering valve
Alternative to OEM JDH-3C / JDH-3D
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