Zetor 12145

Last Updated: July 2024

Overview

The Zetor 12145 is a robust and versatile 4WD tractor with a 6-cylinder, liquid-cooled diesel engine. It offers a synchro mesh transmission with 16 forward and 8 reverse gears. The engine displacement is 417.5 cubic inches, producing a maximum power of 121.32 HP (90.49 kW) at 2200 rpm and a maximum torque of 388 lb.-ft. (526 Nm) at 1425 rpm. The tractor features a torque rise of 28% and a hydraulic system capable of exerting a maximum force of 5,800 lbs (25.8 kN) at the hitch points, with a pump delivery rate of 15.6 GPM (59.05 l/min) and hydraulic power of 25.0 HP (18.6 kW) at 2320 psi (160 bar). It rides on agricultural tires with front dimensions of 14.9 inches in width and 24 inches in diameter, and rear tires measuring 18.4 inches wide and 38 inches in diameter. The operating weight is 10600 pounds, and the coolant capacity is 24 quarts.

Key Specifications

Transmission: Synchro mesh

Drive Type: 4WD

Operating Weight: 10600

Fuel Type: Diesel

Image Gallery

Zetor 12145 Tractor

Technical Specifications

Engine

Manufacturer: Zetor
Model: -
Cooling Type: Liquid-cooled
Cylinder Orientation: -
Valve Configuration: -
Fuel Type: Diesel
Induction Type: -
Cylinders: 6
Displacement (ci): 417.5
Bore (in): 4.331
Stroke (in): 4.724
Rated RPM: -
Power Output (hp): -

Transmission

Type: Synchro mesh
Forward Gears: 16
Reverse Gears: 8
Total Gears: -

Dimensions

Length (in): -
Width (in): -
Height (in): -
Operating Weight (lb): 10600

Power Take-Off (PTO)

PTO Type: -
PTO Speed 1 (rpm): -
PTO Speed 2 (rpm): -
PTO Speed 3 (rpm): -

Miscellaneous

Chassis: 4x4 MFWD 4WD
Drive Type: 4WD
Steering Type: -
Coolant Capacity (qts): 24
Front Tire Diameter (in): 24
Front Tire Width (in): 14.9
Rear Tire Diameter (in): 38
Rear Tire Width (in): 18.4
Front/Rear Rim Diameter (in): -
Tire Type: Ag
Manufacture - End Year: -
Hitch Type: Category II
Hitch Category: -
Hitch Position: -
Hitch Capacity (lb): -
Operator Station Type: Open
Starter Type: -
Brake Type: -
Hydraulic System Type: -

Test Results

Nebraska Tractor Test Laboratory - Zetor 12145 Tractor - Test Date: 1984

Maximum Power and Fuel Consumption

Maximum Power: 121.32 HP (90.49 kW) at 2200 rpm
Fuel Consumption at Maximum Power: 7.09 Gal/hr (26.83 l/h) with a fuel efficiency of 0.458 lb/hp.hr (0.278 kg/kW.h)

Drawbar Performance

Power at Rated Engine Speed (8th Gear): 100.80 HP (75.16 kW) with a drawbar pull of 9,640 lbs (42.89 kN) and a speed of 4.01 mph (6.46 km/h)
Fuel Consumption at Rated Speed: 0.494 lb/hp.hr (0.300 kg/kW.h)

Torque and Engine Performance

Maximum Torque: 388 lb.-ft. (526 Nm) at 1425 rpm
Torque Rise: 28% with a power increase to 122.81 HP (91.58 kW) at 1800 rpm

Hydraulic Performance

Maximum Force Exerted: 5,800 lbs (25.8 kN) at hitch points
Pump Delivery Rate: 15.6 GPM (59.05 l/min) at rated engine speed
Hydraulic Power: 25.0 HP (18.6 kW) at delivery pressure of 2320 psi (160 bar)

Overall Efficiency

Fuel Efficiency at Standard PTO Speed (1000 rpm): 12.68 Hp.hr/gal (2.50 kW.h/l)
Fuel Consumption: 7.09 Gal/hr (26.83 l/h) at 2200 rpm

Nebraska Tractor Test Lab.(1984).Nebraska Summary S020: Zetor 12145. University of Nebraska-Lincoln. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/2300