Ursus 904
The Ursus 904 is a tractor produced by Ursus. It is equipped with a 278.4 ci 4.6 L engine. The listed engine power is Diesel (listed): 85 hp / 63.4 kW. Transmission: 16 forward and 8 reverse. Operating weight: 9,105 lbs 4130 kg.
Engine Power
Diesel (listed): 85 hp / 63.4 kW
Fuel & Capacities
Diesel
Transmission
16 forward and 8 reverse
Operating Weight
9,105 lbs
4130 kg
Overview
 | Bizon De Luxe SeriesRow-Crop tractor |
|---|---|
Bizon De Luxe Series | |
Row-Crop tractor | |
Production | |
|---|---|
Manufacturer | Ursus |
Row-Crop tractor | |
Ursus 904 Engine | |
|---|---|
Ursus 4.6L 4-cyl diesel | |
Engine details ...  |
Ursus 904 Transmission | |
|---|---|
16-speed | |
Transmission details ...  |
Ursus 904 Power | |
|---|---|
Engine | 85 hp
63.4 kW |
Mechanical | |
|---|---|
Four-wheel drive | |
Steering | hydraulic power |
Hydraulic brakes | |
Hydraulics | |
|---|---|
Type | Ursomatic |
Pump flow | 12.7 gpm
48.1 lpm |
Tractor hitch | |
|---|---|
Control | position control and draft sensing |
Rear lift | 8,378 lbs
3800 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO Type | 540/1000 |
Dimensions & Tires | |
|---|---|
Wheelbase | 92.8 inches
235 cm |
Weight | 9,105 lbs
4130 kg |
Front tire | 11.4x24 |
Rear tire | 16.4x34 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Battery volts | 12 |
Engine
Engine Detail — 278.4 ci / 4.6 L Diesel
Manufacturer | Ursus |
Fuel Type | Diesel |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 278.4 ci
4.6 L |
Bore/Stroke | 4.331x4.724 inches
110 x 120 mm |
Power | 85 hp
63.4 kW |
Compression | 17:1 |
Rated RPM | 2200 |
Starter volts | 12 |
Transmission
Transmission — 16 forward and 8 reverse
Gears | 16 forward and 8 reverse |
 | |
Dimensions
Ursus 904 Tires | |
|---|---|
Ag front | 11.4x24 |
12.4x24 | |
14.9x24 | |
11.4x28 | |
Ag rear | 16.4x34 |
13.6x38 | |
15.5x38 | |
16.9x38 | |
18.6x38 | |
Dimensions | |
|---|---|
Wheelbase | 92.8 inches
235 cm |
Length | 155.3 inches
394 cm |
Width | 76 inches
193 cm |
Height | 97.1 inches
246 cm |
Weight | 9,105 lbs
4130 kg |
Ground clearance | 15.8 inches
40 cm |
Photos
Ursus 904 tractor photo
Recommended Implements & Sizing Guide
Engineering recommendations for Ursus 904 based on its 85 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 3 to 4 Bottom (16")3 - 4 铧 (40 cm) | Heavy Duty | Suitable for medium loam and stubble turnover. |
Rotary Cutter / MowerMowing & Clearing | 7 to 8 ft (84-96 in)2.1 - 2.4 m | Heavy Duty | Heavy-duty twin spindle cutter for overgrown acreage. |
Rotary TillerSeedbed Prep | 78 to 84 in200 - 215 cm | Heavy Duty | Heavy commercial tiller with multi-speed gearbox. |
Disc HarrowSecondary Tillage | 10 to 14 ft Tandem / Offset3.0 - 4.2 m 重型交错耙 | Heavy Duty | Aggressive residue cutting in corn/cotton stubble. |
Hay BalerHay & Forage | 4x4 to 4x5 Round Baler1.2x1.5 m 紧凑圆捆机 | Heavy Duty | Silage and dry hay; 540 RPM PTO with slip-clutch. |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Ursus 904.
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Ursus 904 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Ursus 904.
Converted Equivalents:
Horsepower (HP)85 hp
Kilowatts (kW)63.4 kW
Metric Horsepower (PS / CV)86.2 PS
Direct Competitor Comparison
Compare Ursus 904 against same-era industry alternatives in the same horsepower class.
Current Model
Ursus
Ursus 904
Engine Power:Diesel (listed): 85 hp / 63.4 kW
★ Baseline Reference
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