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Zetor Proxima 8421

Zetor Proxima 8421 tractor
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The Zetor Proxima 8421 is a farm tractor produced from 2004 to 2007 as part of the Proxima Series. It features a 4.2L turbocharged 4-cylinder liquid-cooled diesel engine producing 84 hp (62.6 kW) at 2200 RPM. The tractor offers two transmission options: a 10-speed syncromesh and a 12-speed mechanical shuttle, both with a 304.8mm hydraulic cerametallic disc clutch. It has a two-wheel drive mechanical setup with optional cab and air-conditioning. The tractor's dimensions include a 90 inch (228 cm) wheelbase, 152 inch (386 cm) length, and weighs 7440 lbs (3374 kg). It is equipped with an open center hydraulic system with 2900 psi (200.0 bar) pressure and 3 valves. The rear hitch is category II/I with position and draft control and a rear lift capacity of 6830 lbs (3098 kg). The PTO is independent with 540/1000 RPM options. Available attachments include front-end loaders 102H, 102SLX, and 112SLX with various lift and breakout capacities.
ZetorProxima 8421tractorfarm tractorspecificationsenginetransmissiondimensionshydraulicsPTOattachments
Power84 hp
Founded2004 - 2007
Model8421

Technical Specifications

Detailed specifications and technical data for Zetor Proxima 8421

Power

Engine power:84 hp (62.6 kW)
PTO (claimed):78 hp (58.2 kW)

Engine

Type:turbocharged diesel
Power:84 hp (62.6 kW)
Cooling:liquid-cooled
Cylinders:4-cylinder
Rated RPM:2200
Displacement:254 ci (4.2 L)
Starter volts:12
Fuel tank (Cab):32 gal (121.1 L)
Fuel tank (ROPS):20 gal (75.7 L)

Dimensions

Width:73 inches (185 cm)
Length:152 inches (386 cm)
Weight:7440 lbs (3374 kg)
Rear tire:16.9-34
Wheelbase:90 inches (228 cm)
Front tire:9.00-16
Rear tread:56 to 71 inches (142 to 180 cm)
Front tread:56 to 71 inches (142 to 180 cm)
Height (cab):102 inches (259 cm)
Height (ROPS):103 inches (261 cm)
Ground clearance:22 inches (55 cm)

Hydraulics

Type:open center
Valves:3
Pressure:2900 psi (200.0 bar)
Pump flow:14 gpm (53.0 lpm)
Total flow:18 gpm (68.1 lpm)

Mechanical

ROPS:Two-post folding ROPS. Cab optional with air-conditioning.
Drive:Two-wheel drive

Production

Series:Proxima Series
Built in:Brno, Czechoslovakia
Variants:8421 2WD, 8441 4WD
Years produced:2004 - 2007

Attachments

Loaders:Zetor 102H loader, Zetor 102SLX loader, Zetor 112SLX loader

102H Loader

Weight:2100 lbs (952 kg)
Dump time:3s
Dump angle:40°
Raise time:4s
Bucket width:73 inches (185 cm)
Rollback time:3.5s
Reach (dumped):38 inches (96 cm)
Reach (ground):73 inches (185 cm)
Rollback angle:20°
Height (at pin):122 inches (309 cm)
Breakout (at pin):5320 lbs (2413 kg)
Clearance (dumped):98 inches (248 cm)
Lift (full at pin):3930 lbs (1782 kg)
Breakout (at 800mm):2860 lbs (1297 kg)
Lift (full at 800mm):2030 lbs (920 kg)

102SLX Loader

Weight:2300 lbs (1043 kg)
Dump time:2.5s
Dump angle:60°
Raise time:5.2s
Bucket width:73 inches (185 cm)
Rollback time:2s
Reach (dumped):20 inches (50 cm)
Reach (ground):83 inches (210 cm)
Rollback angle:40°
Height (at pin):127 inches (322 cm)
Breakout (at pin):5960 lbs (2703 kg)
Clearance (dumped):91 inches (231 cm)
Lift (full at pin):4670 lbs (2118 kg)
Breakout (at 800mm):4280 lbs (1941 kg)
Lift (full at 800mm):2500 lbs (1134 kg)

112SLX Loader

Weight:2450 lbs (1111 kg)
Dump time:2.5s
Dump angle:60°
Raise time:5.6s
Bucket width:73 inches (185 cm)
Rollback time:2s
Reach (dumped):34 inches (86 cm)
Reach (ground):90 inches (228 cm)
Rollback angle:40°
Height (at pin):137 inches (347 cm)
Breakout (at pin):5180 lbs (2349 kg)
Clearance (dumped):107 inches (271 cm)
Lift (full at pin):3270 lbs (1483 kg)
Breakout (at 800mm):3590 lbs (1628 kg)
Lift (full at 800mm):2120 lbs (961 kg)

Transmission

Options:10-speed syncromesh, 12-speed mechanical shuttle

Syncromesh

Type:syncromesh
Gears:10 forward and 2 reverse
Clutch:304.8mm hydraulic cerametallic disc

Mechanical shuttle

Note:Reverse speeds are 10% faster than forward
Type:mechanical shuttle
Gears:12 forward and reverse
Clutch:304.8mm hydraulic cerametallic disc

Tractor hitch

Control:position and draft control
Rear Type:II/I
Rear lift:6830 lbs (3098 kg)

Power Take-off (PTO)

Rear PTO:independent
Rear PTO Type:540/1000

Related Models

Zetor Proxima 7441

Model:7441

Zetor Proxima 8441

Model:8441