The JD500, JD500A, and JD500B
The Industrial versions of the agricultural 3020
Built 1964-1971

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The JD500 replaced the 3010 Wheel at the 1964 model year. The JD500 had basically the same changes as the 3010 Wheel, plus a option, for the Power-Shift transmission. It had eight forward speeds and four reverse, with moving gear changes possible. It was also changed to use a two lever shift. The Syncro-Range transmission was still available.

The JD500 began production at serial number 50000 as a heavy duty Wheel tractor. Beginning at number 101000, the JD500 Series A was introduced as a "Loader Backhoe". Sometime in 1968, the JD500B was introduced, it appears to have wider and heavier fenders than the JD500A.

JD500 Pictures, here!

Here is a list of the differences of the JD500 from the 3020...

Cast iron nose frame, for increased weight and protection of the fuel tank Sheet metal made with 10 gauge steel Industrial style grill, flat Frame Rails larger and stronger Holes drilled in different pattern from agricultural versions Frame made with 6 inch C-channel steel Frame extends farther back onto transmission case than ag versions Tread size fixed Larger rear axle housings, with better bearings and axles Heavier Front axle Steering-Uses frame mounted hydraulic cylinders, not motor Two lever gear shifting Right lever shift through all gears Left lever shift through high-low-reverse ranges Left lever located at original position of rockshaft lever Rockshaft lever relocated to right side of seat Different Wheels/Rims, industrials use split rims

JD500 Options (that I know about)

• Gasoline or diesel engine.
• Power Shift, or Collar Shift transmission
• PTO Options
  • None
  • 1000 RPM front PTO shaft
  • 1000 RPM rear PTO shaft
  • Dual speed (540/1000 RPM) rear PTO
• Rockshaft for 3 point hitch or mounted equipment
• Belt Pulley
• Front Wheels
  • 7.50x16, 6 ply
  • 7.50x16, 8 ply
  • 8.25x16, 10 ply
  • 14x17.50, 10 ply
• Rear Wheels
  • 14.9x28, 8 ply
  • 16.9x28, 6 ply
  • 16.9x28, 8 ply
  • 16.9x34, 8 ply
  • 14.00x24, 8 ply

All the hitch, and hydraulic options of the 3020 were also available for the JD500. They could be left off if there was usually no need for them.

JD500 Production
Year	Gas	Diesel
1964	60	423
1965	39	466
1966	36	529
1967	26	570
1968	28	549
1969	17	785
1970	7	1046
1971	3	483
Total per engine	216	4851
Total Production	5067

3020 Serial Numbers JD500 used the same serial number range Tractor tag location: Rear of the transmission case
Year	Beginning S/N
1964	50000
1965	68000
1966	84000
1967	97286
1968	112933
1969	123000
1970	129897
1971	150000
1972	154197

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JD500 Tractor specifications (from December 1965)
Diesel Engine
Cylinders- 4
Bore- 4.25 inches
Stroke- 4.75 inches
Displacement- 270 cubic inches
Rated RPM- 2100
PTO Horsepower- 64

Gasoline Engine
Cylinders- 4
Bore- 4.25 inches
Stroke- 4.00 inches
Displacement- 227 cubic inches
Rated RPM- 2100
PTO Horsepower- 64

Transmission- 8 forward speed, 4 reverse Power Shift or
8 forward speed, 2 reverse Collar Shift
Wheel Base- 82 inches
Turning Radius- 145 inches
Shipping Weight- approximately 7000 pounds. depending on choice of engine and transmission


This page would not be possible without Green Magazine
And plenty of information was taken from the JD500 Service Manual, SM 2057