John Deere 6403

John Deere 6403The John Deere 6403 is a 2WD/4WD utility tractor from the 6003 series. This tractor was manufactured by John Deere in Saltillo, Mexico from 2002 to 2008. The John Deere 6403 is equipped with a 4.5 L (276.0 cu·in) four-cylinder diesel engine and a partially synchronized transmission with 9 forward and 3 reverse gears.

The JD 6403 utility tractor used the John Deere engine. It is a 4.5 L, 4,523 cm2, (276.0 cu·in) four-cylinder turbocharged diesel engine with 106.0 mm (4.17 in) of the cylinder bore and 127.0 mm (5 in) of the piston stroke. The compression ratio rating is 17.0:1. This engine produced 103.5 PS (76.1 kW; 102.1 HP) at 2,100 rpm of output power.

The John Deere 6403 is equipped with power steering, mechanical wet disc brakes, Two-post folding ROPS or ComfortVantage Cab (optional) and 157.8 liters (41.7 US gal.; 34.7 Imp. gal) fuel tank.

John Deere 6403 Specifications

General Specifications
Model John Deere 6403
Length 2WD: 4,120 mm (162.2 in)
4WD: 4,140 mm (163 in)
Width 1,850 mm (72.8 in)
Height (ROPS) 2,760 mm (108.7 in)
Wheel base 2WD: 2,310 mm (90.9 in)
4WD: 2,300 mm (90.6 in)
Weight (shipping) 2WD ROPS: 3,490 kg (7,695 lbs)
4WD ROPS: 3,690 kg (8,130 lbs)
2WD Cab: 3,890 kg (8,580 lbs)
4WD Cab: 4,080 kg (8,990 lbs)
Fuel tank capacity 157.8 liters (41.7 US gal.; 34.7 Imp. gal)
Battery 12V, CCA 925A
Cabin type Two-post folding ROPS or ComfortVantage Cab (optional)
Engine model John Deere
Engine type Four-stroke, liquid-cooled, inline
Cylinders 4
Fuel type Diesel
Displacement 4.5 L, 4,523 cm2, (276.0 cu·in)
Bore and stroke 106.0 mm X 127.0 mm (4.17 in X 5 in)
Compression ratio 17.0:1
Horsepower 103.5 PS (76.1 kW; 102.1 HP) at 2,100 rpm
Starter Electric
Oil capacity: 12.3 L (13 US. qt, 10.8 Imp. qt.)
Coolant capacity: 13.5 L (14.3 US. qt, 11.9 Imp. qt.)
Transmission and chassis
Chassis 4×2 2WD or 4×4 MFWD 4WD
Steering type Power
Brakes Mechanical wet disc
Final drive Inboard planetary
Differential lock Mechanical rear
Transmission model Top Shaft Synchronized (TSS)
Transmission type Partially synchronized with cerametalic dry disc clutch
Gears 9 forward and 3 reverse
Speed Forward: 29.4 kmh (18.3 mph) Reverse: 27.8 kmh (17.3 mph)
Front tires Ag: 10.00-16, 13.6-24
Rear tires Ag: 18.4-34
Three-Point Hitch
Category II
Control type Mechanical lower-link draft sensing
Lift capacity (at 610 mm/24 in) 2,190 kg (4,830 lbs)
PTO (Power take-off shaft)
Rear PTO type Independent with dry disc clutch
Rear PTO speed 540/1000 rpm
Hydraulic system
Hydraulic type Open center
Pressure 2750 psi (189.6 bar)
Valves 2 or 3
Pump flow 12.1 gpm (45.8 lpm)
Total flow 15.0 gpm (56.8 lpm)
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