Minneapolis-Moline G550 Specs
Overview
The Minneapolis-Moline G550 is a row-crop farm tractor manufactured between 1969 and 1975, powered by a 232 ci six-cylinder Waukesha-Oliver engine in diesel or gasoline variants. It features a 99-inch wheelbase and a shipping weight of 6,841 lbs, with an operator station that is open or optionally equipped with a cab and heater. Performance testing at Nebraska recorded approximately 53 hp at the PTO and over 45 hp at the drawbar for both fuel configurations.
Ideal Applications
Transmission and Drive Configuration:
The tractor is equipped with a 2WD drive type and a Hydra-Power transmission that provides a two-speed power shift between direct-drive and a lower range, resulting in 12 forward and 4 reverse gears.
Tested Power and Pull Results:
In Nebraska Tractor Test 944, the gasoline model achieved a maximum pull of 6,799 lbs, while Test 943 recorded the diesel model at a maximum pull of 6,636 lbs with a 4.3 gal/hour fuel consumption rate.
Chassis and Hydraulic Dimensions:
The unit features adjustable front tread widths from 51.5 to 87.5 inches, a 14-gallon open center hydraulic system, and a Type II/I rear hitch with lower-link draft control.
Production
| Description | Row-Crop tractor / Original price was $6,500 in 1975 |
|---|---|
| Manufacturer | Minneapolis-Moline |
Engine
| Air cleaner | dry / dry |
|---|---|
| Bore/Stroke | 3.625x3.75 inches (92 x 95 mm) / 3.625x3.75 inches (92 x 95 mm) |
| Compression | 165:1 / 8:1 |
| Coolant capacity | 20 qts (18.9 L) / 20 qts (18.9 L) |
| Description | Waukesha-Oliver / diesel / 6-cylinder / liquid-cooled / Waukesha-Oliver / gasoline / 6-cylinder / liquid-cooled |
| Displacement | 232 ci (3.8 L) / 232 ci (3.8 L) |
| Oil capacity | 6 qts (5.7 L) / 6 qts (5.7 L) |
| Rated RPM | 2200 / 2200 |
| Starter volts | 12 / 12 |
| Engine type | Waukesha-Oliver 3.8L 6-cyl diesel / Waukesha-Oliver 3.8L 6-cyl gasoline |
| Engine type | Waukesha-Oliver 3.8L 6-cyl diesel / Waukesha-Oliver 3.8L 6-cyl gasoline |
| Drawbar (tested) | 45.7 hp (34.1 kW) |
| PTO (claimed) | 53 hp (39.5 kW) |
| PTO (tested) | 53.50 hp (39.9 kW) |
Transmission
| Clutch | 279.4mm dry disc / 279.4mm dry disc |
|---|---|
| Description | The Hydra-Power transmission provides a two-speed power shift between direct-drive and the lower Hydra-Power range. |
| Gears | 12 forward and 4 reverse / 6 forward and 2 reverse |
| Oil capacity | 40 qts (37.9 L) |
| Transmission | Hydra-Power |
| Type | partial power shift / unsynchronized gear |
| Transmission type | 12-speed partial power shift / 6-speed unsynchronized gear |
| Transmission type | 12-speed partial power shift / 6-speed unsynchronized gear |
Mechanical
| Cab | Open operator station. Cab optional with available heater. |
|---|---|
| Description | Power steering / Disc brakes |
| Drive type | Two-wheel drive |
Capacity
| Fuel | 27.5 gal (104.1 L) |
|---|---|
| Hydraulic system | 14 gal (53.0 L) |
Hydraulics
| Capacity | 14 gal (53.0 L) |
|---|---|
| Type | open center |
| Valves | 2 to 4 |
Hitch
| Control | lower-link draft control |
|---|---|
| Rear Type | II/I |
PTO
| Rear PTO | independent |
|---|---|
| Rear PTO Type | 540 |
Dimensions & Tires
| Front tread | 51.5 to 87.5 inches (130 to 222 cm) |
|---|---|
| Ground clearance | 25.375 inches (64 cm) |
| Height (exhaust) | 97.625 inches (247 cm) |
| Height (steering wheel) | 80 inches (203 cm) |
| Length | 154.5 inches (392 cm) |
| Rear tread | 56.5 to 89.5 inches (143 to 227 cm) |
| Shipping weight | 6841 lbs (3103 kg) |
| Wheelbase | 99 inches (251 cm) |
| Width | 81.5 inches*Minimum width (207 cm) |
| Front tire | 7.50-16 |
| Rear tire | 15.5-38 |
| Weight | 6841 lbs (3103 kg) |
| Wheelbase | 99 inches (251 cm) |
| Ag front | 7.50-16 / 5.50-16 |
| Ag rear | 15.5-38 / 12.4-38 |
G550 Serial Number Location
| Description | Serial number plate below instrument panel. |
|---|
G550 Serial Numbers
| 1969 | 218-128 |
|---|---|
| 1970 | 221-295 |
| 1971 | 225-914 |
| 1972 | 232-089 |
| 1973 | 236-883 |
| 1974 | 244-937 |
| 1975 | 256-165 |
| Description | FAQ: How to read a serial number table. |
| Final | 262-877 |
Nebraska Tractor Test 943
| Description | Diesel Hydra-Power 2WDJune 8 - 15, 1966Link: Nebraska Tractor Test 943 file / PTO performance / Drawbar performance / Gear 4-Hydra used for power test. / Gear 2-Hydra used for pull test. |
|---|---|
| Fuel use | 4.3 gal/hour (16.3 l/hour) / 4.4 gal/hour (16.7 l/hour) |
| Max power | 45.7 hp (34.1 kW) |
| Max pull | 6,636 lbs (3010 kg) |
| Power at rated engine speed | 53.50 hp (39.9 kW) |
Nebraska Tractor Test 944
| Description | Gasoline Hydra-Power 2WDJune 8 - 16, 1966Link: Nebraska Tractor Test 944 file / PTO performance / Drawbar performance / Gear 4-Hydra used for power test. / Gear 2-Hydra used for pull test. |
|---|---|
| Fuel use | 4.9 gal/hour (18.5 l/hour) / 4.9 gal/hour (18.5 l/hour) |
| Max power | 45.4 hp (33.9 kW) |
| Max pull | 6,799 lbs (3084 kg) |
| Power at rated engine speed | 53.3 hp (39.7 kW) |
Tractor Tests
| Description | NTTL 943: diesel Hydra-Power 2WD / NTTL 944: gasoline Hydra-Power 2WD |
|---|