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Years in Production / 2002–2008
John Deere
6603
Explore the specifications, hardware, and original references for the John Deere 6603.

112hp
Source index power
MFWD Optional
Drive
2002–2008
Production years
John Deere
Manufacturer
6603 / 01
At a glance
Overview
2002 - 2008
6003 Series
Utility tractor
Production
Utility tractor
Built in Saltillo, Mexico
Original price was $34,870 in 2004 with 2WD
- Manufacturer
- John Deere
Mechanical
Two- or four-wheel drive
Power steering
Mechanical wet disc brakes
Two-post folding ROPS. ComfortVantage Cab optional.
- Final Drives
- inboard planetary
- Differential Lock
- mechanical rear
Hydraulics
- Type
- open center
- Pressure
- 2750 psi189.6 bar
- Rear Valves
- 2 or 3
- Pump Flow
- 15 gpm56.8 lpm
- Total Flow
- 15 gpm56.8 lpm
Hitch
- Rear Type
- II
- Control
- mechanical lower-link draft sensing
- Rear Lift At Ends
- 5,292 lbs2400 kg
- Rear Lift At24610mm
- 4828 lbs2189 kg
Pto
- Rear Pto
- independent
- Clutch
- dry disc
- Rear Type
- 540/1000
- Engine Rpm
- 540@2100
- Engine Rpm
- 1000@2100
Serial Numbers
FAQ: How to read a serial number table.
- 2002
- 1228
- 2003
- 1486
- 2004
- 1908
- 2005
- 2363
- 2006
- 3178
- 2007
- 3986
Electrical
- Ground
- negative
- Charging System
- alternator
- Charging Amps
- 65
- Battery Cca
- 925
- Battery Volts
- 12
6603 / 02
Under the hood
Engine Detail
John Deere 6068T
turbocharged diesel
6-cylinder
liquid-cooled
- Displacement
- 414 ci6.8 L
- Bore Stroke
- 4.19x5.00 inches106 x 127 mm
- Power
- 112 hp83.5 kW
- Compression Ratio
- 17:1
- Rated Rpm
- 2100
- Firing Order
- 1-5-3-6-2-4
- Starter Volts
- 12
- Starter Power
- 4.2 hp3.1 kW
- Oil Capacity
- 20 qts18.9 L
- Coolant Capacity
- 19.5 qts18.5 L
- Intake Valve Clearance
- 0.013 inches0.330 mm
- Exhaust Valve Clearance
- 0.017 inches0.432 mm
- Cylinders
- 6
- Cooling
- liquid-cooled
Engine Options
John Deere 6.8L 6-cyl diesel
- Fuel Tank
- 41.7 gal157.8 L
6603 / 03
Gears & controls
Transmission
Three gears (1-3), plus reverse, (R) in three ranges (A-C). Gear shifts are synchronized. Tractor must be stopped to shift range.
- Transmission
- Top Shaft Synchronized (TSS)
- Transmission Type
- partially synchronized
- Gears
- 9 forward and 3 reverse
- Clutch
- 305mm cerametalic dry disc
- Oil Capacity
- 61.2 qts57.9 L
John Deere6603 Transmission
9-speed partially synchronized
6603 / 04
Size. Stance. Footprint.
Dimensions
- Length
- 175 in444 cm
- Width
- 73 in185 cm
- Height
- 82.3 in209 cm
- Height (cab)
- 78 in198 cm
- Height (ROPS)
- 110.7 in281 cm
- Wheelbase
- 104.1 in264 cm
- Ground clearance
- 18 in45 cm
- Front tread
- 58.7 in149 cm
- Rear tread
- 59.5 in151 cm
Dimensions And Tires
- 2wd Wheelbase
- 104.1 inches264 cm
- 4wd Wheelbase
- 103.8 inches263 cm
- Weight
- 8776 to 10252 pounds
- Front Tire
- 10.00-16
- Rear Tire
- 18.4-38
Serial Number Location
Serial number plate on the right side of the tractor frame, above the front axle.
Tires And Tracks
- Standard Tires Ag
- Front: 10.00-16. Rear: 18.4-38
- Standard Tires Ag
- Front: 14.9-24. Rear: 18.4-38
See it in action
Videos
Watch John Deere 6603 videos from their original YouTube creators.