J.I. Case
4890
Farm tractor · 1979–1983 · 300 hp
J.I. Case4890
The J.I. Case 4890 is a farm tractor manufactured from 1979 to 1983. It features a Saab-Scania engine, and hydraulic, front, rear or four-wheel crab steering steering. The transmission is a partial powershift type with 12 forward and 4 reverse.
Engine
| Engine | Saab-Scania |
|---|---|
| Fuel Type | diesel |
| Cylinders | 6 |
| Cooling | liquid-cooled |
| Turbocharger Status | turbocharged diesel |
| Displacement | 674 ci (11 L) |
| Bore | 5 in (127 mm) |
| Stroke | 5.71 in (145 mm) |
| Compression Ratio | 14.7 |
| Power Gross | 300 hp (223.7 kW) |
| Power Rated | 300 hp (223.7 kW) |
| Power PTO | 253.41 hp (189 kW) |
| Power Drawbar | 218.68 hp (163.1 kW) |
| Starter Volts | 12 |
| Oil Capacity | 28.4 qts (26.9 L) |
| Coolant Capacity | 44 qts (41.6 L) |
| Manufacturer | Saab-Scania |
| Rated | 2,200 RPM |
Transmission
| Transmission Type | partial powershift |
|---|---|
| Gears | 12 forward and 4 reverse |
| Transmission Description | Four ranges with three power shifts in each range. |
| Clutch | hydraulic dry disc |
| Oil Capacity | 52 qts (49.2 L) |
| Available Options | 12-speed |
Hydraulics
| Type | closed center PFC |
|---|---|
| Pump Flow | 24 gpm (90.8 lpm) |
| Pressure | 2,250 psi (155.1 bar) |
| Valves | 4 |
| Total Flow | 31 gpm (117.3 lpm) |
PTO
| Rear Type | 1000 |
|---|
Hitch
| Rear Type | III |
|---|---|
| Rear Lift | 12,750 lbs (5,783 kg) |
Dimensions
| Length | 243 in (617 cm) |
|---|---|
| Width | 99 in (251 cm) |
| Wheelbase | 110 in (279 cm) |
| Ground Clearance | 18 in (45 cm) |
| Front Tread | 74 in (187 cm) |
| Rear Tread | 74 in (187 cm) |
Weight
| Operating | 25,750 lbs (11,680 kg) |
|---|---|
| Ballasted | 28,460 lbs (12,909 kg) |
Tires & Tracks
| Front Ag | 18.4-34, 20.8-34 |
|---|---|
| Rear Ag | 18.4-34, 20.8-34, 23.1-30, 24.5-32, 30.5-32 |
Fuel
| Capacity | 150 gal (567.8 L) |
|---|
Steering
| Type | hydraulic, front, rear or four-wheel crab steering |
|---|
Cab
| Cab | Silent Guardian cab standard with air-conditioning |
|---|