Zetor Proxima 8421: all source data
All 60 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production| Manufacturer | Zetor |
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| (no label) | Built in Brno, Czechoslovakia |
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Engine| (no label) | Zetor 4.2L 4-cyl diesel |
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| ROPS Fuel tank (ROPS) | 20 gal | 75.7 L |
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| Cab Fuel tank (Cab) | 32 gal | 121.1 L |
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Transmission| (no label) | 10-speed syncromesh |
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| (no label) | 12-speed mechanical shuttle |
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Power| Engine (gross) | 90 hp | 67.1 kW |
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| Engine (net) | 84 hp | 62.6 kW |
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| PTO (claimed) | 78 hp | 58.2 kW |
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Mechanical| (no label) | Two-wheel drive |
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| (no label) | Power steering |
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| (no label) | Hydraulic wet disc brakes |
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| (no label) | Two-post folding ROPS. Cab optional with air-conditioning. |
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Hydraulics| Type | open center |
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| Pressure | 2900 psi | 200.0 bar |
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| Valves | 3 |
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| Pump flow | 14 gpm | 53.0 lpm |
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| Total flow | 18 gpm | 68.1 lpm |
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Hitch| Rear Type | II/I |
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| Control | position and draft control |
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| Rear lift | 6830 lbs | 3098 kg |
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Pto| Rear PTO | independent |
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| Rear PTO Type | 540/1000 (1.375) |
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Dimensions| Wheelbase | 90 inches | 228 cm |
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| Weight | 7440 lbs | 3374 kg |
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| Front tire | 9.00-16 |
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| Rear tire | 16.9-34 |
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Electrical| Charging system | alternator |
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| ROPS Charging amps | 55 |
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| Cab Charging amps | 70 |
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| Battery volts | 12 |
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Engine
Engine detail| (no label) | Zetor |
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| (no label) | turbocharged diesel |
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| (no label) | 4-cylinder |
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| (no label) | liquid-cooled |
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| Displacement | 254 ci | 4.2 L |
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| Power (net) | 84 hp | 62.6 kW |
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| Power (gross) | 90 hp | 67.1 kW |
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| Rated RPM | 2200 |
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| Starter volts | 12 |
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Transmission
Transmission options| (no label) | 10-speed syncromesh |
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| (no label) | 12-speed mechanical shuttle |
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Transmission| Type | syncromesh |
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| Gears | 10 forward and 2 reverse |
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| Clutch | 304.8mm hydraulic cerametallic disc |
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| Type | mechanical shuttle |
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| Gears | 12 forward and reverse |
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| Clutch | 304.8mm hydraulic cerametallic disc |
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Dimensions
Tires| Ag front | 9.00-16 |
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| Ag rear | 16.9-34 |
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Dimensions| Wheelbase | 90 inches | 228 cm |
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| Length | 152 inches | 386 cm |
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| Width | 73 inches | 185 cm |
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| Height (ROPS) | 103 inches | 261 cm |
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| Height (cab) | 102 inches | 259 cm |
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| Weight | 7440 lbs | 3374 kg |
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| Ground clearance | 22 inches | 55 cm |
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| Front tread | 56 to 71 inches | 142 to 180 cm |
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| Rear tread | 56 to 71 inches | 142 to 180 cm |
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