Ursus 912 vs Zetor 6421 Proxima - compare
Compare tractors: Ursus 912 vs Zetor 6421 Proxima
Ursus 912 vs Zetor 6421 Proxima compare - general information
| Specs | Ursus 912 | Zetor 6421 Proxima |
|---|---|---|
| Brand | Ursus | Zetor |
| Model | Ursus 912 | Zetor 6421 Proxima |
| Series | n.d. | n.d. |
| Previous model | – | – |
| Next model | – | – |
| Smaller | – | – |
| Larger | – | – |
| Years | from 1985 y. | n.d. |
| Cab with ROPS | No | No |
| Reviews | Ursus 912 reviews New! | Zetor 6421 Proxima reviews New! |
Ursus 912 vs Zetor 6421 Proxima - performance
| Specs | Ursus 912 | Zetor 6421 Proxima |
|---|---|---|
| Maximum power (HP / kW) | 82 KM (61.1 kW) | 61.2 KM (45 kW) |
| Engine RPM | 2200 rpm | 2200 rpm |
| Fuel consumption | n.d. | n.d. |
| Fuel tank capacity | n.d. | n.d. |
| Max. speed | n.d. | 30 km / h |
Ursus 912 vs Zetor 6421 Proxima - engine
| Specs | Ursus 912 | Zetor 6421 Proxima |
|---|---|---|
| Fuel type | Diesel | |
| Engine producer | n.d. | Perkins |
| Engine model | Diesel | Perkins 1204E-E44TA EU Stage II / EPA Tier 2 |
| Engine type | Diesel (diesel engine) | |
| Engine capacity | 4.6 l. | 4.4 l. |
| Strokes, qty | n.d. | 4 |
| Cylinders | 4 | 4 |
| Compression | n.d. | 16.5 |
| Bore | 110 mm | 105 mm |
| Stroke | 120 mm | 4 mm |
| Maximum torque | n.d. | 560.3 Nm / 1400 rpm |
| Air filter | n.d. | n.d. |
| Fuel filter | n.d. | n.d. |
| Fuel filter chambers, qty | n.d. | n.d. |
| Oil filter | n.d. | n.d. |
| Oil pump | n.d. | gear pump |
| Speed control (control) | n.d. | n.d. |
| Injection pump | n.d. | piston pump, direct fuel injection |
| Injectors | n.d. | multi holes injector |
| Injection pressure | n.d. | n.d. |
| Cooling system | n.d. | liquid cooled engine |
| Forced cooling | n.d. | Yes, cooling water pump |
| Cooler | Yes, with fan | |
| Thermostat | Yes | |
| Cooler type | tubular-plate cooler | |
| Coolant system capacity | n.d. | 7 l. |
| Clutch | n.d. | n.d. |
Ursus 912 vs Zetor 6421 Proxima - turbocharger
| Specs | Ursus 912 | Zetor 6421 Proxima |
|---|---|---|
| Turbocharger | No | Yes (Turbo Diesel engine) |
| Dual turbocharger | Not applicable | No |
| Intercooler | Not applicable | Yes |
| Aftercooler | Not applicable | No |
| Wastegate valve | Not applicable | No |
| Variable geometry | Not applicable | No |
| Additional parameters | – | – |
Ursus 912 vs Zetor 6421 Proxima - electronics
| Specs | Ursus 912 | Zetor 6421 Proxima |
|---|---|---|
| Supply voltage starter (V) | n.d. | 12 V |
| Ground | n.d. | n.d. |
| Battery (V) | n.d. | 12 V |
| Battery, qty | n.d. | 1 |
| Charging system | Generator | Alternator |
| Charging system producer | n.d. | n.d. |
| Ignition | Manual | Manual |
| Rear stop lamp | Yes | Yes |
| Rear agricultural lamp | n.d. | n.d. |
| Cock lamp | No | No |
Ursus 912 vs Zetor 6421 Proxima - PTO
| Specs | Ursus 912 | Zetor 6421 Proxima |
|---|---|---|
| PTO rpm | 540 rpm | |
| PTO min | 540 rpm | |
| PTO max | n.d. | |
| PTO control | manual | manual |
Ursus 912 vs Zetor 6421 Proxima - brakes
| Specs | Ursus 912 | Zetor 6421 Proxima |
|---|---|---|
| ABS | No | No |
| Brake assist | No | No |
| Braking system | n.d. | n.d. |
| Differential | No | No |
| Brake type | n.d. | n.d. |
| Discs | – | – |
Ursus 912 vs Zetor 6421 Proxima - dimensions
| Specs | Ursus 912 | Zetor 6421 Proxima |
|---|---|---|
| Weight | from 4070 kg (depending by model) | n.d. |
| Weight with ROPS | n.d. | n.d. |
| Weight with cab | n.d. | n.d. |
| Length | 3962 mm | n.d. |
| Height | 2692 mm | n.d. |
| Width | n.d. | n.d. |
| Clearance | n.d. | n.d. |
| Rear clearance | n.d. | n.d. |
| Front track width | n.d. | n.d. |
| Rear track width | n.d. | n.d. |
| Wheelbase | 2380 mm | n.d. |
| Front tires | 11-16 | n.d. |
| Rear tires | n.d. | n.d. |
| Max. mass of the trailer without brakes | 1500 kg | 1500 kg |
| Max. mass of the trailer with brakes | n.d. | n.d. |
| Max. axle load | n.d. | n.d. |
| Max. total weight | n.d. | n.d. |
| Turning radius | n.d. | n.d. |
Ursus 912 vs Zetor 6421 Proxima - drive
| Specs | Ursus 912 | Zetor 6421 Proxima |
|---|---|---|
| Drive system | (depending by model) | 2WD (depending by model) |
| Additional | one wheel drive | |
| Permanent 4-wheel drive | n.d. | n.d. |
| Permanent systems that constantly power all the wheels | n/a | n/a |
| Dynamic allocation of power between the axles | n/a | n/a |
| Independent Link Suspension | None | None |
| Articulated suspension | – | – |
| Crawler drive | No | No |
| Hydrostatic steering | No | No |
| Differential | n.d. | n.d. |
| Steering | rod | rod |
| Front rods | n.d. | n.d. |
| Rear planetary drives | n.d. | n.d. |
| Front planetary drives | n.d. | n.d. |
Ursus 912 vs Zetor 6421 Proxima - hydraulics
| Specs | Ursus 912 | Zetor 6421 Proxima |
|---|---|---|
| Three-point hitch | n.d. | 2626 kg |
| Three-point hitch type | n.d. | n.d. |
| Three-point hitch performance | n.d. | n.d. |
| Three-point hitch pressure | n.d. | n.d. |
| Load Sensing | No | No |
| Closed | n.d. | n.d. |
| Central | No | No |
| Constant flow | No | No |
| Constant pressure | No | No |
| Control system | n.d. | n.d. |
| Pump | n.d. | n.d. |
| Two-section distributor | n.d. | n.d. |
| Quick couplings | n.d. | n.d. |
| Auto Lift | n.d. | n.d. |
Ursus 912 vs Zetor 6421 Proxima - transmission
| Specs | Ursus 912 | Zetor 6421 Proxima |
|---|---|---|
| Synchronous transmission | n.d. | n.d. |
| Transmission mechanically synchronized | n/a | n/a |
| PowerShift | No | No |
| PowerShuttle | No | No |
| Additional | – | – |
| Hydrostatic transmission | n.d. | n.d. |
| Forward gears | 16 | 10 |
| Reverse gears | 8 | 10 |
| Creeper | n.d. | n.d. |
Ursus 912 vs Zetor 6421 Proxima - equipment
| Specs | Ursus 912 | Zetor 6421 Proxima |
|---|---|---|
| Clevis | Yes (???) | Yes (???) |
| Lower catch | n.d. | n.d. |
| Air conditioning | n.d. | n.d. |