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Years in Production / 1995–2001
AGCO
8425
Explore the specifications, hardware, and original references for the AGCO 8425.
425hp
Source index power
4x4 Only
Drive
1995–2001
Production years
AGCO
Manufacturer
8425 / 01
At a glance
Production
Four-wheel Drive (4WD) tractor
Built in Coldwater, Ohio, USA
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.
- Manufacturer
- AGCO
Mechanical
Four-wheel drive
Articulated power steering
Hydraulic dry disc brakes
Cab standard with air conditioning.
- Final Drives
- outboard planetary
Hydraulics
- Type
- closed center
- Pressure
- 2500 psi172.4 bar
- Valves
- 4 or 5
- Pump Flow
- 35 gpm132.5 lpm
- Scv Flow
- 27 gpm102.2 lpm
Electrical
- Ground
- negative
- Charging System
- alternator
- Charging Amps
- 130
- Batteries
- 3
- Battery Cca
- 600 (Detroit)
- Battery Cca
- 700 (Cummins)
- Battery Volts
- 12
8425 / 02
Under the hood
Engine Detail (Option 1)
Cummins N14
turbocharged aftercooled diesel
6-cylinder 24-valve
liquid-cooled inline
- Displacement
- 855 ci14.0 L
- Bore Stroke
- 5.50x6.00 inches140 x 152 mm
- Power
- 425 hp316.9 kW
- Fuel System
- direct injection
- Air Cleaner
- dual paper elements with aspirator
- Pre Heating
- coolant heater
- Compression Ratio
- 16.5:1
- Rated Rpm
- 2100
- Torque
- 1500 lb-ft2034.0 Nm
- Torque Rpm
- 1400
- Starter Volts
- 12
- Cylinders
- 6
- Cooling
- liquid-cooled inline
Engine Detail (Option 2)
Detroit Diesel Series 60
turbocharged diesel
6-cylinder
liquid-cooled inline
The Detroit Diesel engine was an option on the 8425 through 1998. Starting in 1999, only the Cummins engine was available.
- Displacement
- 774 ci12.7 L
- Power
- 425 hp316.9 kW
- Fuel System
- direct injection
- Pre Heating
- coolant heater
- Rated Rpm
- 2100
- Torque
- 1500 lb-ft2034.0 Nm
- Torque Rpm
- 1200
- Cylinders
- 6
- Cooling
- liquid-cooled inline
Engine Options
Cummins 14.0L 6-cyl diesel
Detroit Diesel 12.7L 6-cyl diesel
- Fuel Tank
- 230 gal870.6 L
8425 / 03
Gears & controls
Transmission
- Transmission
- Eaton Fuller
- Transmission Type
- partially synchronized
- Gears
- 18 forward and 2 reverse
- Clutch
- 393.7mm cerametallic disc
8425 / 04
Size. Stance. Footprint.
Dimensions
- Length
- 272.4 in691 cm
- Width
- 152.9 in388 cm
- Height (cab)
- 133.2 in338 cm
- Wheelbase
- 137.1 in348 cm
- Ground clearance
- 20.5 in52 cm
Dimensions And Tires
- Wheelbase
- 137.1 inches348 cm
- Weight
- 28300 lbs12836 kg
- Front Tire
- 20.8R42
- Rear Tire
- 20.8R42
Tires And Tracks
- Front Ag
- 20.8R42
- Front Ag
- 24.5-32
- Front Ag
- 30.5L-32
- Front Ag
- 20.8R38
- Rear Ag
- 20.8R42
- Rear Ag
- 24.5-32
- Rear Ag
- 30.5L-32
- Rear Ag
- 20.8R38
8425 / 05
Tests (NTTL)
Oced Tractor Test1721
Cummins diesel 18-speed 4WDOctober 1 - 22, 1996Link: OCED Tractor Test 1721 file
Drawbar performance
Gear 5L used for power test.
Gear 2H used for pull test.
- Max Power
- 346.61 hp258.5 kW
- Fuel Use
- 22.1 gal/hour83.6 l/hour
- Max Pull
- 35,497 lbs16101 kg