Tractor · 1995Unverified
AGCO AGCOSTAR 8425
AGCO AGCOSTAR 8425 — Four-wheel Drive (4WD) tractor · 425 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
425 hp
Max power
258.5 kW
Weight
12836 kg
Hover a source tag to verify
Overview
ManufacturerAGCOReference
Four-wheel Drive (4WD) tractorReference
Built in Coldwater, Ohio, USAReference
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.Reference
Four-wheel driveReference
Final drivesoutboard planetaryReference
Articulated power steeringReference
Hydraulic dry disc brakesReference
Cab standard with air conditioning.Reference
Engine
Cummins 14.0L 6-cyl dieselReference
Detroit Diesel 12.7L 6-cyl dieselReference
Fuel tank870.6 LReference
Engine316.9 kWReference
Drawbar (tested)258.5 kWReference
Cummins N14Reference
turbocharged aftercooled dieselReference
6-cylinder 24-valveReference
liquid-cooled inlineReference
Displacement14.0 LReference
Bore/Stroke140 x 152 mmReference
Power316.9 kWReference
Fuel systemdirect injectionReference
Air cleanerdual paper elements with aspiratorReference
Pre-heatingcoolant heaterReference
Compression16.5:1Reference
Rated RPM2100Reference
Torque2034.0 NmReference
Torque RPM1400Reference
Starter volts12Reference
Detroit Diesel Series 60Reference
turbocharged dieselReference
6-cylinderReference
The Detroit Diesel engine was an option on the 8425 through 1998. Starting in 1999, only the Cummins engine was available.Reference
Displacement12.7 LReference
Torque RPM1200Reference
Max power258.5 kWReference
Transmission
18-speed partially synchronizedReference
TransmissionEaton FullerReference
Typepartially synchronizedReference
Gears18 forward and 2 reverseReference
Clutch393.7mm cerametallic discReference
PTO & Hydraulics
Typeclosed centerReference
Pressure172.4 barReference
Valves4 or 5Reference
Pump flow132.5 lpmReference
SCV flow102.2 lpmReference
Dimensions
Wheelbase348 cmReference
Weight12836 kgReference
Front tire20.8R42Reference
Rear tire20.8R42Reference
Ag front20.8R42Reference
Ag rear20.8R42Reference
Ag front24.5-32Reference
Ag front30.5L-32Reference
Ag front20.8R38Reference
Ag rear24.5-32Reference
Ag rear30.5L-32Reference
Ag rear20.8R38Reference
Length691 cmReference
Width388 cmReference
Ground clearance52 cmReference
Clearance (drawbar)58 cmReference
Shipping12836 kgReference
Ballasted18314 kgReference
Electrical
GroundnegativeReference
Charging systemalternatorReference
Charging amps130Reference
Batteries3Reference
Battery CCA600 (Detroit)Reference
Battery CCA700 (Cummins)Reference
Battery volts12Reference
Capacities
Max capacity19278 kgReference
AGCO 8425 Height
Hood240 cmReference
Cab338 cmReference
Exhaust352 cmReference
Test results
Cummins diesel 18-speed 4WDOctober 1 - 22, 1996Link: OCED Tractor Test 1721 fileReference
Drawbar performanceReference
Fuel use83.6 l/hourReference
Gear 5L used for power test.Reference
Max pull16101 kgReference
Gear 2H used for pull test.Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.