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John Deere 6603

The John Deere 6603 is a utility tractor from the 6003 Series produced from 2002 to 2008. It was built in Saltillo, Mexico and originally priced at $34,870 in 2004 for the 2WD model. It features a 6.8L 6-cylinder turbocharged diesel engine producing 112 hp, with a 9-speed partially synchronized transmission. The tractor offers two- or four-wheel drive options, mechanical wet disc brakes, and a two-post folding ROPS with an optional ComfortVantage Cab. Hydraulics are open center type with 2750 psi pressure and 15 gpm pump flow. The rear hitch is category II with mechanical lower-link draft sensing and a rear lift capacity of up to 5292 lbs. The PTO is independent with 540/1000 rpm options. Dimensions vary slightly between 2WD and 4WD models, with weights ranging from 8776 to 10252 lbs depending on configuration. Electrical system features a 12-volt battery with 65 amp alternator charging.
John Deere 6603tractor specsutility tractor6.8L diesel engine112 hp9-speed transmission6003 Series
Power112 hp
Founded2002 - 2008
Model6603

Technical Specifications

Detailed specifications and technical data for John Deere 6603

Power

Engine power:112 hp (83.5 kW)
PTO (claimed):95 hp (70.8 kW)

Engine

Type:turbocharged diesel
Model:John Deere 6068T
Power:112 hp (83.5 kW)
Cooling:liquid-cooled
Cylinders:6-cylinder
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:414 ci (6.8 L)
Firing order:1-5-3-6-2-4
Oil capacity:20 qts (18.9 L)
Starter power:4.2 hp (3.1 kW)
Starter volts:12
Coolant capacity:19.5 qts (18.5 L)
Intake valve clearance:0.013 inches (0.330 mm)
Exhaust valve clearance:0.017 inches (0.432 mm)

Height

Cab:78 inches (198 cm)
Hood:70 inches (177 cm)
ROPS:110.7 inches (281 cm)
Exhaust:118 inches (299 cm)
Steering wheel:82.3 inches (209 cm)
Height (Folded ROPS):83.4 inches (211 cm)

Weight

2WD Cab Shipping:9658 lbs (4380 kg)
4WD Cab Shipping:10252 lbs (4650 kg)
2WD ROPS Shipping:8776 lbs (3980 kg)
4WD ROPS Shipping:9361 lbs (4246 kg)

Electrical

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

Hydraulics

Type:open center
Pressure:2750 psi (189.6 bar)
Pump flow:15 gpm (56.8 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:$34,870 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
Oil capacity:61.2 qts (57.9 L)

Tractor hitch

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

Dimensions & Tires

Width:73 inches (rear fenders) (185 cm)
2WD Length:175 inches (444 cm)
4WD Length:171.6 inches (435 cm)
Rear tread:59.5 to 79.4 inches (151 to 201 cm)
2WD Wheelbase:104.1 inches (264 cm)
4WD Wheelbase:103.8 inches (263 cm)
2WD Front tread:58.7 to 80.4 inches (149 to 204 cm)
4WD Front tread:63.6 to 79.4 inches (161 to 201 cm)
Alternate tires:Front: 14.9-24. Rear: 18.4-38
Ground clearance:18 inches (45 cm)
Flanged rear axle:65.8 inch length (1671 mm)
Standard tires (ag):Front: 10.00-16. Rear: 18.4-38

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 6115D

Model:6115D

John Deere 6403

Model:6403