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John Deere 6425 Specs

JD 6425 Engine Specifications

Engine types - 4045HL281
Maximum engine power according to 97/68/EC at rated engine speed - 85 kW (115 hp)
Max. torque - 477 Nm (352 lb-ft) at 1600 rpm
Number of cylinders - 4
Bore - 106.5 mm (4.19 in.)
Stroke - 127.0 mm (5.00 in.)
Displacement - 4530 cm3 (275 in.3)
Firing order - 1-3-4-2
Intake valve clearance - 0.36 mm (0.014 in.)
Exhaust valve clearance - 0.46 mm (0.018 in.)
Slow idle - 850 rpm
Fast idle - 2460 rpm
Fuel system - electronic fuel injection
Cooling system - viscous fan
Rated engine speed - 2300 rpm
Working speed range - 1500 to 2300 rpm
Speed for rear PTO operation (540 rpm) - 2124 rpm
Speed for rear PTO (reversible) operation (540 rpm) - 2143 rpm
Speed for rear PTO operation (1000 rpm) - 2208 rpm

Power Take-off

Rear PTO - Independent
Clutch - Mechanical-hydraulic wet disc
Rear RPM - 540/1000
Engine RPM - 540@2143 / 1000@2208
Max. PTO power at rated PTO speed (factory measured, with 1000 rpm at PTO) - 72 kW (98 hp)

John Deere 6425 Transmission

Transmission - SyncroPlus
Type - Synchronized. Three gears plus reverse in four ranges
Gears - 12 forward and 4 reverse
Actuation of reverse drive lever - mechanical/hydraulic, under load, without actuating the clutch
Clutch - wet 225mm disc PermaClutch II
Oil capacity - 58.1 qts (55.0 L)
Clutch - mechanical/hydraulic

Mechanical

Chassis - 4x2 2WD, 4x4 MFWD, 4WD (optional)
Steering - hydrostatic power
Brakes - hydraulic wet disc
Cab - Two-post foldable ROPS

JD 6425 Hydraulics and Hitch

System type - open-center
Pump - gear-type pump
Pump flow - 14.27 gpm (54.0 lpm)
System pressure (min) - 1200 kPa (12 bar; 175 psi)
System pressure (max) - 17500 kPa (175 bar; 2540 psi)
Steering system - hydrostatic power
Rear Type - 2/1
Control - Load and depth control with mechanical top-link sensing
Rear lift - 9,037 lbs (4099 kg)

John Deere 6425 Capacities

Fuel tank - 165 L (43.6 U.S.gal.)
Cooling system - 26.5 L (7.0 U.S.gal)
Crankcase with filter - 16 L (4.3 U.S.gal)
Transmission/hydraulic system - 52 L (13.7 U.S.gal.)
Axle housing (front-wheel drive) - 6.5 L (1.7 U.S.gal)
Final drives (front-wheel drive) - 0.95 L (0.25 U.S.gal)

JD 6425 Dimensions

Weight (shipping) - 8,333 lbs (3779 kg)
Weight (max capacity) - 15,430 lbs (6999 kg)
Wheelbase - 94.5 inches (240 cm)
Length - 168.2 inches (427 cm)
Width - 87.2 inches (221 cm)
Height (ROPS) - 108.9 inches (276 cm)
Clearance (rear axle) - 63.5,63.9,66.2,67.4,71.5,72.7,72.7,73.9,75.4 inches (161 cm)
Rear axle - Flange

Tires

Front Tires - 340/85R24
Front Tires - 380/85R24
Front Tires - 380/85R28
Rear Tires - 460/85R30
Rear Tires - 460/85R34
Rear Tires - 460/85R38

John Deere 6425 Loads and Weights

Maximum permissible static vertical load

Without front-wheel drive axle - 1400 kg (3086 lb)
With front-wheel drive axle - 1600 kg (3527 lb)

Maximum permissible front axle loads

Without front-wheel drive axle - 2050 kg (4519 lb)
With front-wheel drive axle - 3600 kg (7939 lb)

Maximum permissible rear axle loads

Without front-wheel drive axle - 6500 kg (14330 lb)
With front-wheel drive axle - 6500 kg (14330 lb)

Maximum permissible total weight

Without front-wheel drive axle - 7000 kg (15432 lb)
With front-wheel drive axle - 7000 kg (15432 lb)