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John Deere 6403

John Deere 6403 tractor
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The John Deere 6403 is a utility tractor from the 6003 Series produced from 2002 to 2008. It features a 4.5L 4-cylinder turbocharged diesel engine producing 102 hp, with a 9-speed partially synchronized transmission. Built in Saltillo, Mexico, it offers two- or four-wheel drive options, mechanical wet disc brakes, and a two-post folding ROPS with an optional ComfortVantage Cab. The tractor has a fuel tank capacity of 41.7 gallons and hydraulic system with open center type and 2750 psi pressure. Dimensions vary slightly between 2WD and 4WD models, with weights ranging from 7695 to 8987 pounds depending on configuration. The PTO is independent with dry disc clutch and operates at 540/1000 RPM. The 6403 is part of the 6003 Series and is related to models 6100D and 6603.
John Deere 6403tractorspecificationsenginetransmissionutility tractor6003 Series
Power102 hp
Founded2002 - 2008
Model6403

Technical Specifications

Detailed specifications and technical data for John Deere 6403

Power

Engine:102 hp (76.1 kW)
PTO (tested):89.43 hp (66.7 kW)
PTO (claimed):85 hp (63.4 kW)
Drawbar (tested):72.87 hp (54.3 kW)

Engine

Type:John Deere 4.5L 4-cyl diesel turbocharged diesel
Power:102 hp (76.1 kW)
Fuel tank:41.7 gal (157.8 L)
Rated RPM:2100
Bore/Stroke:4.19x5.00 inches (106 x 127 mm)
Compression:17:1
Displacement:276 ci (4.5 L)
Firing order:1-3-4-2
Oil capacity:13 qts (12.3 L)
Starter volts:12
Coolant capacity:14.3 qts (13.5 L)

Height

ROPS:108.7 inches (276 cm)
Exhaust:113.5 inches (288 cm)
2WD Hood:68.3 inches (173 cm)
4WD Hood:67.9 inches (172 cm)
Steering wheel:80.3 inches (203 cm)
Height (Folded ROPS):81.4 inches (206 cm)

Weight

Ballasted:11515 lbs (5223 kg)
2WD Cab Shipping:8580 lbs (3891 kg)
4WD Cab Shipping:8987 lbs (4076 kg)
2WD ROPS Shipping:7695 lbs (3490 kg)
4WD ROPS Shipping:8130 lbs (3687 kg)
4WD ROPS Operating:8750 lbs (3969 kg)

Dimensions

Width:73 inches (rear fenders) (185 cm)
2WD Length:162.4 inches (412 cm)
4WD Length:163.1 inches (414 cm)
Rear tread:59.5 to 79.4 inches (151 to 201 cm)
2WD Wheelbase:91.3 inches (231 cm)
4WD Wheelbase:90.9 inches (230 cm)
2WD Front tread:58.7 to 80.4 inches (149 to 204 cm)
4WD Front tread:59.7 to 79.4 inches (151 to 201 cm)
Flanged rear axle:65.8 inch length (1671 mm)

Electrical

Ground:negatve
Battery CCA:925
Battery volts:12
Charging amps:65
Charging system:alternator

Hydraulics

Type:open center
Pressure:2750 psi (189.6 bar)
Pump flow:12.1 gpm (45.8 lpm)
Total flow:15 gpm (56.8 lpm)
Rear valves:2 or 3

Mechanical

ROPS:Two-post folding ROPS. ComfortVantage Cab optional.
Drive:Two- or four-wheel drive
Brakes:Mechanical wet disc brakes
Final drives:inboard planetary
Power steering:Yes
Differential lock:mechanical rear

Production

Series:6003 Series
Built in:Saltillo, Mexico
Category:Utility tractor
Original price:$30,942 in 2004 with 2WD
Years produced:2002 - 2008

Transmission

Type:Top Shaft Synchronized (TSS), partially synchronized
Gears:9 forward and 3 reverse
Notes:Three gears (1-3), plus reverse, (R) in three ranges (A-C). Gear shifts are synchronized. Tractor must be stopped to shift range.
Clutch:305mm cerametalic dry disc

Tractor hitch

Control:mechanical lower-link draft sensing
Rear Type:II
Rear lift (at 24"/610mm):4828 lbs (2189 kg)

Power Take-off (PTO)

Clutch:dry disc
Rear PTO:independent
Engine RPM:540@2100, 1000@2100
Rear PTO Type:540/1000

Related Models

John Deere 6100D

Model:6100D

John Deere 6603

Model:6603