Overview & History
The Case IH 7120 tractor was built from 1987 until 1993 in Racine, Wisconsin, USA. It was part of the first line of tractors from the Magnum series. In its final year of production, it was sold for US$ 76,000.
The 7120 employed an 8.3-litre, six-cylinder turbocharged diesel engine designed by Consolidated Diesel Corporation, a firm jointly owned by Case IH and Cummins Inc. The engine had a liquid-cooled vertical inline, a viscous fan for its cooling system, and a dual paper element air cleaner. Its bore measured 114 millimetres and the stroke 135 millimetres.
The engine used ether starting aid for pre-heating, but block heater and oil pan heater were also available as options. It had a 17.3:1 compression ratio, ran at 2200 rated RPM, and did 150 hp at PTO and 136 hp at the drawbar. Its oil capacity was 19.9 litres and required an oil change every 250 hours. Lastly, its fuel capacity was 292.5 litres, but a 359.6-litre capacity was also available.
The 7120’s hitch was a III/IIIN rear type and had a rear lift capacity rating of 3,764 kilogrammes. An electronic lower link control was used to manoeuvre it.
The first line of Magnum tractors was known for their styling, which was distinctive when they were first launched. What set them apart from the other tractors on the market, however, was the 18-speed full powershift transmission, which was offered as standard equipment. This move was a first in the industry and soon inspired other tractor manufacturers to follow suit in order to compete with the Magnum series.
Another transmission available for the 7120 was a 24-speed powershift with a creeper feature. This optional range added another six forward gears and one reverse to the system. Beginning with the 1990 model year, an additional two reverse gears were added to the transmission.
This model came standard in a 2WD chassis, but a 4WD was also offered as an option. It had an independent 1,000-RPM or 540/1000-RPM rear PTO. It was also fitted with hydrostatic power steering and differential hydraulic wet disc brakes.
Another feature that marked the 7120, as well as the rest of the 7100 Magnum line, as a trendsetting machine was its Silent Guardian II cab. This innovation set new records for sound reduction levels in the industry. A radio/tape deck was also available as an option. Aside from the cab, Case IH moved the engine’s muffler to the right front corner of the cab, giving an unobstructed view over the tractor’s hood.
The 7120’s hydraulics system was a closed centre pressure-flow compensated type with two to four valves. It had a capacity of 191 litres and an 83 litres-per-minute pump flow running at 2600 psi. Meanwhile, its electricals featured a negative ground and an alternator charging system that charged at 110 amps. The tractor was equipped with two 12-volt batteries that can do 950 cold-cranking amps.
The Case IH 7120 was a reliable machine that’s still remarked by enthusiasts as “one of the greatest tractors ever built”. One issue you may encounter would be an oil slobber from the front cover plate, but it can be easily fixed. Many farmers who purchased this model during its production years still use it to this day.
Case IH Replacement Parts
G.W. Tractors specialises in sourcing replacement parts for all Case IH models. Call us on 1800 062 790 to find tractor parts for your Case IH 7120. We may also have Case IH 7120 tractors in our yards for wrecking, and if we do they will appear below. Check out all the tractors we are wrecking.
Who should buy a Case IH 7120
The Case IH 7120 tractor is best suited for farmers who need serious power for heavy-handed tasks. It is also great for industrial use.
Buy a used Case IH 7120
G.W. Tractors is the best place to buy a used Case IH 7120 in Australia. If we don’t have any in stock at the moment, give us a call on 1800 062 790 and we have a better chance than anyone else of finding you one. Below are the used Case IH tractors we have in our yards now. Check out all of our used tractors for sale.
Case IH 7120 Specs
| Series | Magnum series | Last one sold for | US$ 76,000 (1993) |
| Years made | 1987 to 1993 | Type | Row-crop tractor |
| Factory | Racine, Wisconsin, USA | Next model | Case IH 7220 |
| Series back | Case IH 7110 | Series next | Case IH 7130 |
| Engine overview | CDC 8.3L 6-cyl diesel | Engine capacity | 8.3 L [504.5 ci] |
| Cylinders | 6-cylinder | Cooling | Liquid-cooled vertical inline |
| Bore/stroke | 114 x 135 mm [4.488 x 5.315 inches] | Air cleaner | Dual paper elements |
| Compression | 17.3:1 | Rated RPM | 2200 |
| Starter volts | 12 | Oil capacity | 19.9 L [21 qts] |
| Fuel capacity | 295.2 L [78 gal] Optional: 359.6 L [95 gal] | Tractor hitch – rear type | III/IIIN |
| Rear lift | 3,764 kg [8,300 lbs] | Control | Electronic lower link |
| Drawbar power (tested) | 135.55 hp [101.1 kW] | PTO power (claimed) | 150 hp [111.9 kW] |
| Transmission types | Full power shift Power shift with creeper | Gears | 18 forward and 2 reverse 24 forward and 3 reverse 18 forward and 4 reverse (1990-1993 models) |
| Clutch | Hydraulic wet disc | Rear PTO | Independent |
| Rear RPM | 1000 (1.375) 540/1000 (1.375) | Engine RPM | 1000@2200 |
| Standard front tyres | 11.00-16 (2WD) 13.6R28 (4WD) | Standard rear tyres | 18.4R38 |
| Front tread | 2WD: 152 to 218 cm [60 to 86 inches] 4WD: 152 to 241 cm [60 to 95 inches] | Rear tread | 2WD: 152 to 317 cm [60 to 125 inches] 4WD: 152 to 276 cm [60 to 109 inches] |
| Operating weight | 4WD: 7,532 kg [16,605 lbs] | Length | 2WD: 485 cm [191 inches] 4WD: 502 cm [118.2 inches] |
| Wheelbase | 300 cm [118.3 inches] | Height – Overall | 2WD: 56 cm [22.4 inches] 4WD: 42 cm p16.6 inches] |
| Chassis | 42 2WD 4×4 MFWD 4WD optional | Steering | Hydrostatic power |
| Brakes | Differential hydraulic wet disc | Cab | Silent Guardian II Cab standard with air-conditioning. Optional radio/tape deck. |
| Hydraulics type | Closed centre pressure flow compensated (PFC) | Hydraulics capacity | 191.1 L [50.5 gal] |
| Pressure | 2,600 psi [179.3 bar] | Pump flow | 83.3 lpm [22 gpm] |
| Total flow | 109.8 lpm [29 gpm] | Electrical – Ground | Negative |
| Charging system | Alternator | Charging amps | 110 |
| Number of batteries | 2 | Battery volts | 12 |
Accessories, consumables and more
G.W. Tractors also has a huge range of accessories and consumables for all makes and models of tractors. We have everything you need to keep your tractor working.
