Zetor

Zetor Proxima 8421

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.

Power84 hp

Founded2004 - 2007

Model8421

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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	Weight2100 lbs (952 kg) Dump time3s Dump angle40° Raise time4s Bucket width73 inches (185 cm) Rollback time3.5s Reach (dumped)38 inches (96 cm) Reach (ground)73 inches (185 cm) Rollback angle20° 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	Weight2300 lbs (1043 kg) Dump time2.5s Dump angle60° Raise time5.2s Bucket width73 inches (185 cm) Rollback time2s Reach (dumped)20 inches (50 cm) Reach (ground)83 inches (210 cm) Rollback angle40° 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	Weight2450 lbs (1111 kg) Dump time2.5s Dump angle60° Raise time5.6s Bucket width73 inches (185 cm) Rollback time2s Reach (dumped)34 inches (86 cm) Reach (ground)90 inches (228 cm) Rollback angle40° 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	Typesyncromesh Gears10 forward and 2 reverse Clutch304.8mm hydraulic cerametallic disc
Mechanical shuttle	NoteReverse speeds are 10% faster than forward Typemechanical shuttle Gears12 forward and reverse Clutch304.8mm hydraulic cerametallic disc