John Deere 6403 tractor specifications

2002 - 2008

2002 - 2008 6003 SeriesUtility tractor

Series:

Series:6403 → 66036100D ↓

2002 - 2008

6003 Series

Utility tractor

Series:

Series:	6403 ←	6603
		6115D ↓

Production

Production
Manufacturer:	John Deere
Type:	Utility tractor
Factory:	Saltillo, Mexico
Original price:	$34,870 (2004 2WD )

John Deere 6603 Power

John Deere 6603 Power
Engine:	112 hp 83.5 kW
PTO (claimed):	95 hp 70.8 kW

John Deere 6603 Engine

John Deere 6603 Engine
John Deere 6.8L 6-cyl diesel
Fuel tank:	41.7 gal 157.8 L
Engine details ...

Mechanical

Mechanical
Chassis:	4x2 2WD
	4x4 MFWD 4WD
Final drives:	inboard planetary
Differential lock:	mechanical rear
Steering:	power
Brakes:	mechanical wet disc
Cab:	Two-post folding ROPS. ComfortVantage Cab optional.
Transmission:	9-speed partially synchronized
Transmission details ...

Hydraulics

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

Tractor hitch

Tractor hitch
Rear Type:	II
Control:	mechanical lower-link draft sensing
Rear lift (at ends):	5,292 lbs 2400 kg
Rear lift (at 24"/610mm):	4828 lbs 2189 kg

Power Take-off (PTO)

Power Take-off (PTO)
Rear PTO:	independent
Clutch:	dry disc
Rear RPM:	540/1000
Engine RPM:	540@2100 1000@2100

Dimensions & Tires

Dimensions & Tires
2WD Wheelbase:	104.1 inches 264 cm
4WD Wheelbase:	103.8 inches 263 cm
Weight:	8776 to 10252 pounds
Front tire:	10.00-16
Rear tire:	18.4-38
Full dimensions and tires ...

6603 Serial Numbers

6603 Serial Numbers
Location:	Serial number plate on the right side of the tractor frame, above the front axle.
photo of 6603 serial number
2002:	1228
2003:	1486
2004:	1908
2005:	2363
2006:	3178
2007:	3986
how to read serial numbers...

Electrical

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

Production

Production Manufacturer:John Deere
Type:Utility tractor
Factory:Saltillo, Mexico
Original price:$30,942 (2004 2WD )

John Deere 6403 Power

John Deere 6403 Power Engine:102 hp
76.1 kW
PTO (claimed):85 hp
63.4 kW
Drawbar (tested):72.87 hp
54.3 kW
PTO (tested):89.43 hp
66.7 kW
power test details ...

2002 - 2008

6003 Series

Utility tractor

Series:

Series:	6403	→ 6603
	6100D ↓

OCED Tractor Test 1808

OCED Tractor Test 1808
Diesel 9-speed 4WD September 10 - 23, 2002 Link: OCED Tractor Test 1808 file
PTO performance
Max power:	89.43 hp 66.7 kW
Fuel use:	5.1 gal/hour 19.3 l/hour
Power at rated engine speed:	86.77 hp 64.7 kW
Fuel use:	5.1 gal/hour 19.3 l/hour
Power at rated PTO speed:	88.09 hp 65.7 kW
Fuel use:	5.2 gal/hour 19.7 l/hour
Drawbar performance
Max power:	72.87 hp 54.3 kW

John Deere 6403 Engine

John Deere 6403 Engine John Deere 4.5L 4-cyl diesel Fuel tank:41.7 gal
157.8 L
Engine details ...

2002 - 2008

6003 Series

Utility tractor

Series:

Series:	6403	→ 6603
	6100D ↓

Engine Detail

Engine Detail
John Deere
turbocharged diesel
4-cylinder
liquid-cooled
Displacement:	276 ci 4.5 L
Bore/Stroke:	4.19x5.00 inches 106 x 127 mm
Power:	102 hp 76.1 kW
Compression:	17:1
Rated RPM:	2100
Firing order:	1-3-4-2
Starter volts:	12
Oil capacity:	13 qts 12.3 L
Coolant capacity:	14.3 qts 13.5 L

Mechanical

Mechanical Chassis:4x2 2WD
4x4 MFWD 4WD
Final drives:inboard planetary
Differential lock:mechanical rear
Steering:power
Brakes:mechanical wet disc
Cab:Two-post folding ROPS. ComfortVantage Cab optional.
Transmission:9-speed partially synchronized
Transmission details ...

2002 - 2008

6003 Series

Utility tractor

Series:

Series:	6403	→ 6603
	6100D ↓

Transmission

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

Speeds

Speeds

Hydraulics

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

Tractor hitch

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

Power Take-off (PTO)

Power Take-off (PTO) Rear PTO:independent
Clutch:dry disc
Rear RPM:540/1000
Engine RPM:540@2100
1000@2100

Dimensions & Tires

Dimensions & Tires 2WD Wheelbase:91.3 inches
231 cm
4WD Wheelbase:90.9 inches
230 cm
Weight:7695 to 8987 pounds
Front tire:10.00-16
Rear tire:18.4-34
Full dimensions and tires ...

2002 - 2008

6003 Series

Utility tractor

Series:

Series:	6403	→ 6603
	6100D ↓

John Deere 6403 Tires

John Deere 6403 Tires
Standard tires (ag):	Front: 10.00-16. Rear: 18.4-34
	Front: 13.6-24. Rear: 18.4-34

Dimensions

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

John Deere 6403 Weight

John Deere 6403 Weight
2WD ROPS Shipping:	7695 lbs 3490 kg
4WD ROPS Shipping:	8130 lbs 3687 kg
2WD Cab Shipping:	8580 lbs 3891 kg
4WD Cab Shipping:	8987 lbs 4076 kg
4WD ROPS Operating:	8750 lbs 3969 kg
Ballasted:	11515 lbs 5223 kg

John Deere 6403 Height

John Deere 6403 Height
Steering wheel:	80.3 inches 203 cm
2WD Hood:	68.3 inches 173 cm
4WD Hood:	67.9 inches 172 cm
ROPS:	108.7 inches 276 cm
Exhaust:	113.5 inches 288 cm

6403 Serial Numbers

6403 Serial Numbers Location:Serial number plate on the right side of the tractor frame, above the front axle.
photo of 6403 serial number
2002:1339
2003:1557
2004:2129
2005:2621
2006:3762
2007:5342

how to read serial numbers...