AGCO AGCOSTAR 8425
The AGCO AGCOSTAR 8425 is a four-wheel drive (4WD) tractor produced from 1995 to 2001. Built in Coldwater, Ohio, USA, it was based on the McConnell 1000 after AGCO purchased McConnell in 1994. The 8425 was available in silver, orange, or red paint for White, Allis, and Massey customers. It features powerful engine options including the Cummins 14.0L 6-cylinder diesel and the Detroit Diesel 12.7L 6-cylinder diesel (available until 1998). The tractor has an 18-speed partially synchronized Eaton Fuller transmission, articulated power steering, hydraulic dry disc brakes, and a cab with air conditioning. It offers strong hydraulic capabilities with a closed center system and multiple valve options. Dimensions include a 137.1 inch wheelbase, 272.4 inch length, and a width of 152.9 inches over duals. The tractor weighs 28300 lbs shipping weight and can be ballasted up to 40375 lbs. Electrical system features a 130 amp alternator and three batteries. The AGCOSTAR 8425 is a robust and versatile 4WD tractor designed for heavy-duty farm work.
Power425 hp
Founded1995 - 2001
Model8425
Technical Specifications
Detailed specifications and technical data for AGCO AGCOSTAR 8425
Power
| Engine power | 425 hp (316.9 kW) |
|---|---|
| Drawbar (tested) | 346.61 hp (258.5 kW) |
Tires
| Ag rear | 20.8R42, 24.5-32, 30.5L-32, 20.8R38 |
|---|---|
| Ag front | 20.8R42, 24.5-32, 30.5L-32, 20.8R38 |
Engine
| Power | 425 hp (316.9 kW) |
|---|---|
| Torque | 1500 lb-ft (2034.0 Nm) |
| Options | Cummins 14.0L 6-cyl diesel, Detroit Diesel 12.7L 6-cyl diesel |
| Fuel tank | 230 gal (870.6 L) |
| Rated RPM | 2100 |
| Torque RPM | 1400 |
| Air cleaner | dual paper elements with aspirator |
| Bore/Stroke | 5.50x6.00 inches (140 x 152 mm) |
| Compression | 16.5:1 |
| Cummins N14 | turbocharged aftercooled diesel, 6-cylinder 24-valve, liquid-cooled inline |
| Fuel system | direct injection |
| Pre-heating | coolant heater |
| Displacement | 855 ci (14.0 L) |
| Starter volts | 12 |
| Detroit Diesel Power | 425 hp (316.9 kW) |
| Detroit Diesel notes | The Detroit Diesel engine was an option on the 8425 through 1998. Starting in 1999, only the Cummins engine was available. |
| Detroit Diesel Torque | 1500 lb-ft (2034.0 Nm) |
| Detroit Diesel Rated RPM | 2100 |
| Detroit Diesel Series 60 | turbocharged diesel, 6-cylinder, liquid-cooled inline |
| Detroit Diesel Torque RPM | 1200 |
| Detroit Diesel Fuel system | direct injection |
| Detroit Diesel Pre-heating | coolant heater |
| Detroit Diesel Displacement | 774 ci (12.7 L) |
Height
| Cab | 133.2 inches (338 cm) |
|---|---|
| Hood | 94.6 inches (240 cm) |
| Exhaust | 138.9 inches (352 cm) |
Weight
| Shipping | 28300 lbs (12836 kg) |
|---|---|
| Ballasted | 40375 lbs (18314 kg) |
| Max capacity | 42500 lbs (19278 kg) |
Dimensions
| Width | 152.9 inches (388 cm) (Width over duals) |
|---|---|
| Length | 272.4 inches (691 cm) |
| Wheelbase | 137.1 inches (348 cm) |
| Ground clearance | 20.5 inches (52 cm) |
| Clearance (drawbar) | 23 inches (58 cm) |
Electrical
| Ground | negative |
|---|---|
| Batteries | 3 |
| Battery CCA | 600 (Detroit), 700 (Cummins) |
| Battery volts | 12 |
| Charging amps | 130 |
| Charging system | alternator |
Hydraulics
| Type | closed center |
|---|---|
| Valves | 4 or 5 |
| Pressure | 2500 psi (172.4 bar) |
| SCV flow | 27 gpm (102.2 lpm) |
| Pump flow | 35 gpm (132.5 lpm) |
Mechanical
| Cab | standard with air conditioning |
|---|---|
| Drive | Four-wheel drive |
| Brakes | Hydraulic dry disc brakes |
| Steering | Articulated power steering |
| Final drives | outboard planetary |
Production
| Type | Four-wheel Drive (4WD) tractor |
|---|---|
| Notes | The AGCOSTAR 8425 was based on the McConnell 1000, AGCO had purchased McConnell in 1994. The 8425 was available in silver, orange, or red paint for White, Allis, and Massey customers. |
| Built in | Coldwater, Ohio, USA |
| Years produced | 1995 - 2001 |
Transmission
| Type | partially synchronized |
|---|---|
| Gears | 18 forward and 2 reverse |
| Clutch | 393.7mm cerametallic disc |
| Transmission | Eaton Fuller |
