John Deere 6403

Production ended · 2WD or 4WD

PTO power · claimed

85 hp

Weight
8,750 lb
Engines
1 Diesel
Built
no record
Price new · 2004
$30,942

Power

Power specifications
Engine102 hp unspecified
PTO85 hp claimed
PTO, tested89.4 hp
Drawbar72.9 hp tested
Listed power102 hp engine basis

Engines

Engines fitted to the John Deere 6403
John Deere 4.5L 4-cyl dieselDiesel · 4 cyl276 ci
Engine details
John Deere 4.5L 4-cyl diesel
Bore × stroke
4.19 in × 5 in
Rated speed
2,100 rpm
Rated power
102 hp
Compression
17:1
Aspiration
turbocharged diesel
Cooling
liquid-cooled
Firing order
1-3-4-2

Transmissions

Transmissions for the John Deere 6403
Top Shaft Synchronized (TSS)partially synchronized9F / 3R
Transmission notes

Top Shaft Synchronized (TSS): Three gears (1-3), plus reverse, (R) in three ranges (A-C). Gear shifts are synchronized. Tractor must be stopped to shift range.

Weight

Weight specifications
Weight8,750 lb operating; 4WD ROPS
Shipping7,695 lb
Ballasted11,515 lb

Dimensions

Dimensions specifications
Wheelbase91.3 in
Length162.4 in
Width73 in
Height108.7 in unspecified
Rear tread, narrowest59.5 in
Rear tread, widest79.4 in

Capacities

Capacities specifications
Fuel tank41.7 gal

Hydraulics

Hydraulics specifications
Systemopen center
Pump flow12.1 gpm
Total flow15 gpm
Pressure2,750 psi
Rear valves2 or 3

Hitch

Hitch specifications
Rear hitch categoryII
Controlmechanical lower-link draft sensing
Rear lift capacityno record
Rear lift at 24 in (610 mm)4,828 lb

PTO

PTO specifications
Rear PTOindependent
Rear PTO speeds540/1000
Clutchdry disc
Engine rpm at PTO speed540@2100

Chassis

Chassis specifications
Drive2WD/4WD
SteeringPower steering
BrakesMechanical wet disc brakes
Differential lockmechanical rear
Final drivesinboard planetary
CabTwo-post folding ROPS. ComfortVantage Cab optional

Tires

Tires specifications
Front10.00-16
Rear18.4-34

Electrical

Electrical specifications
System voltage12 V
Cold cranking925 CCA
Chargingalternator
Charging output65 A
Groundnegatve

Production

Production specifications
Price new$30,942 (2004)
FactoriesSaltillo, Mexico
Built byJohn Deere

Serial numbers

Serial number plate on the right side of the tractor frame, above the front axle.

First serial number by year
YearFirst serial
20021339
20031557
20042129
20052621
20063762
20075342

Literature

  • 6003 Series John Deere, 2005
  • Operator's Manual 6403 and 6603 Tractors (OMRE226033) 2009