J.I. Case 4890
Power
300 hp
Production
1979-1983
Engine
Turbocharged diesel, 6-cylinder
Transmission
Partial powershift
Weight
25,750 lbs [11680 kg]
Drive
4WD
From the same series:
Introduction
J.I. Case 4890 Four-Wheel Drive Tractor
The J.I. Case 4890 is a heavy-duty four-wheel drive tractor produced between 1979 and 1983 in Racine, Wisconsin. Designed for large-scale agricultural operations, this model represents a significant entry in the Case 4800 series, known for its high power output and structural durability.
Engine and Performance
The tractor is powered by a Saab-Scania 6-cylinder turbocharged diesel engine. With a displacement of 674 cubic inches (11.0 liters) and a compression ratio of 14.7:1, it generates 300 horsepower at a rated engine speed of 2200 RPM. The liquid-cooled system ensures thermal stability during sustained heavy-load operations, supported by a 44-quart coolant capacity.
Transmission and Drivetrain
The 4890 utilizes a partial powershift transmission providing 12 forward and 4 reverse gears. It features four distinct ranges with three power shifts available within each range, allowing for efficient speed adjustments under load. The drivetrain is a 4x4 system, paired with a hydraulic dry disc clutch for power engagement.
Hydraulics and Hitch
Equipped with a closed-center Pressure Flow Compensating (PFC) hydraulic system, the tractor delivers a total flow of 31 gallons per minute (117.3 lpm) at a pressure of 2250 psi. It includes 2 to 4 valves for implement control. The rear hitch is a Category III type with a lift capacity of 12,750 lbs (5,783 kg), making it compatible with a wide range of heavy implements.
Operator Environment and Steering
The operator is housed in the Silent Guardian cab, which comes standard with air-conditioning to mitigate environmental stress. Steering is managed by a hydraulic system capable of front, rear, or four-wheel crab steering, providing the maneuverability required for a machine with a 110-inch wheelbase.
Conclusion
With an operating weight of 25,750 lbs and the ability to be ballasted up to 28,460 lbs, the J.I. Case 4890 is designed for heavy traction and intensive field work. Its combination of high-capacity hydraulics, multi-mode steering, and robust engine performance makes it a substantial asset for large-acreage farming applications.
Production Information of J.I. Case, 4890
- Original price was $100,000 in 1983
- Four-wheel Drive (4WD) tractor
- Built in Racine, Wisconsin, USA
| Manufacturer | J.I. Case |
|---|---|
| Total built | 2,716 |
Dimension and Tires Information of J.I. Case, 4890
| Front tread | 74 to 94 inches [187 to 238 cm] |
|---|---|
| Wheelbase | 110 inches [279 cm] |
| Ballasted weight | 28,460 lbs [12909 kg] |
| Operating weight | 25,750 lbs [11680 kg] |
| Length | 243 inches [617 cm] |
| Rear tread | 74 to 94 inches [187 to 238 cm] |
| Ground clearance | 18 inches [45 cm] |
| Width | 99 inches [251 cm] |
| Ag rear | 20.8-34 |
|---|---|
| Ag front | 18.4-34 |
| Ag front(optional) | 24.5-32 |
| Ag front(optional) | 23.1-30 |
| Ag rear | 18.4-34 |
| Ag rear(optional) | 23.1-30 |
| Ag rear(optional) | 30.5-32 |
| Ag front | 20.8-34 |
| Ag front(optional) | 30.5-32 |
| Ag front(optional) | 24.5-32 |
Engine Specifications of J.I. Case, 4890
- Saab-Scania
- Liquid-cooled
- Turbocharged diesel
- 6-cylinder
| Oil capacity | 28.4 qts [26.9 L] |
|---|---|
| Displacement | 674 ci [11.0 L] |
| Compression | 14.7:1 |
| Bore/Stroke | 5.00x5.71 inches [127 x 145 mm] |
| Coolant capacity | 44 qts [41.6 L] |
| Starter volts | 12 |
| Rated RPM | 2200 |
| Power | 300 hp [223.7 kW] |
Transmission Information of J.I. Case, 4890
Transmission variants 1
- Four ranges with three power shifts in each range.
| Transmission | Partial powershift |
|---|---|
| Oil capacity | 52 qts [49.2 L] |
| Gears | 12 forward and 4 reverse |
| Clutch | Hydraulic dry disc |
Mechanical Specs of J.I. Case, 4890
- Silent Guardian cab standard with air-conditioning.
- Hydraulic dry disc brakes
| Drive | 4x4 4WD |
|---|---|
| Steering | Hydraulic, front, rear or four-wheel crab steering |
Power Information of J.I. Case, 4890
| Rear PTO | Independent |
|---|---|
| Rear PTO Type | 1000 |
Hydraulics Specifications of J.I. Case, 4890
| Type | Closed center PFC |
|---|---|
| Total flow | 31 gpm [117.3 lpm] |
| Pump flow | 24 gpm [90.8 lpm] |
| Pressure | 2250 psi [155.1 bar] |
| Valves | 2 to 4 |
Three-Point Hitch of J.I. Case, 4890
| Rear Type | III |
|---|---|
| Rear lift (at 24"/610mm) | 12,750 lbs [5783 kg] |
Electrical System of J.I. Case, 4890
| Ground | Negative |
|---|---|
| Battery volts | 12 |
| Charging system | Alternator |
| Charging amps | 72 |
Where it sits
Its power puts it in the 96th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the J.I. Case 4890 have?
The J.I. Case 4890 delivers 300 HP.
What years was the J.I. Case 4890 produced?
The J.I. Case 4890 was produced in 1979-1983.
What engine does the J.I. Case 4890 have?
The J.I. Case 4890 is powered by a Turbocharged diesel, 6-cylinder engine.
What transmission does the J.I. Case 4890 use?
The J.I. Case 4890 uses a Partial powershift transmission.
How much does the J.I. Case 4890 weigh?
The J.I. Case 4890 weighs 25,750 lbs [11680 kg].
Is the J.I. Case 4890 4WD?
The J.I. Case 4890 is available in 4WD.