John Deere 3029T/turbocharged diesel/3-cylinder/liquid-cooled/The John Deere 5203 was naturally-aspirated until engine serial number 106597. Engines from that point on were turbocharged.
Displacement
179 ci/2.9 L
Bore/Stroke
4.19x4.33 inches/106 x 110 mm
Power
50 hp/37.3 kW
Air cleaner
dry
Compression
17.8:1
Rated RPM
2400
Idle RPM
800-2650
Operating RPM
1400-2400
Firing order
1-2-3
Starter volts
12
Coolant capacity
10 qts/9.5 L
Coolant change
2000 h
Intake valve clearance
0.014 inches/0.356 mm
Exhaust valve clearance
0.018 inches/0.457 mm
ENGINE OIL
Oil capacity
9 qts/8.5 L
Oil change
100 h
JOHN DEERE 5103 ENGINE
Description
John Deere 2.9L 3-cyl diesel
TRANSMISSIONS OVERVIEW
Description
9-speed/9-speed partially synchronized
TRANSMISSION 1
Transmission
SyncReverser
Gears
9 forward and 3 reverse
Clutch
dry disc
Oil capacity
40 qts/37.9 L
Description
Three speeds (1-3) plus reverse (R) in three ranges (A-C). Tractor must be stopped, and clutch used, before shifting speed or range. Standard on 2WD models.
SPEEDS 1
Description
With 13.6x28 rear tires
TRANSMISSION 2
Transmission
SyncShuttle
Type
partially synchronized
Gears
9 forward and 3 reverse
Clutch
dry disc
Oil capacity
40 qts/37.9 L
Description
The SyncShuttle (also identified as Top Shaft Synchronizer or TSS) is available on the 4WD models. Three speeds (1-3) plus reverse (R) in three ranges (A-C). Shifting speeds may be done while in motion, using the clutch. The tractor must be stopped to shift ranges.
SPEEDS 2
Description
With 13.6x28 rear tires
MECHANICAL
Chassis
4x2 2WD/4x4 MFWD 4WD
Steering
power
Brakes
differential wet disc
Cab
Foldable two-post ROPS.
Transmissions
9-speed/9-speed partially synchronized
CAPACITY
Fuel
19 gal/71.9 L
Hydraulic system
10 gal/37.9 L
Front axle
5.3 qts/5.0 L
Front hubs
0.85 qts/0.8 L (each)
HYDRAULICS
Type
open center
Capacity
10 gal/37.9 L
Pressure
2800 psi/193.1 bar
Valves
1 to 2
Pump flow
9.5 gpm/36.0 lpm
Total flow
16.3 gpm/61.7 lpm
Steering flow
6.8 gpm/25.7 lpm
TRACTOR HITCH
Rear Type
I/II
Rear lift
3591 lbs/1628 kg
POWER TAKE-OFF (PTO)
Rear PTO
independent
Rear RPM
540
Engine RPM
540@2400
JOHN DEERE 5103 TIRES
2WD Ag front
7.5-16
4WD Ag front
8.3-24
Ag rear
13.6-28
DIMENSIONS
Wheelbase
80.7 inches/204 cm
Clearance (front axle)
18 inches/45 cm
Front tread
56.9 to 81.9 inches/144 to 208 cm
Rear tread
55.8 to 71.7 inches/141 to 182 cm
JOHN DEERE 5103 WEIGHT
2WD Shipping
4634 lbs/2101 kg
4WD Shipping
5031 lbs/2282 kg
2WD Operating
4715 lbs/2138 kg
Max Drawbar
1675 lbs/759 kg
Max front axle
3300 lbs/1496 kg
Max rear axle
6636 lbs/3010 kg
DIMENSIONS & TIRES
Wheelbase
80.7 inches/204 cm
Weight
4634 to 5031 pounds
Front tire
7.5-16
Rear tire
13.6-28
5103 SERIAL NUMBERS
Location
On the tractor frame, front-left, above the front axle.
2003
P5103U000001
2004
P5103U001282
2005
P5103U003847
2006
P5103U011780
2007
P5103U0?????
2008
P5103U015563
ELECTRICAL
Ground
negative
Charging system
alternator
Charging amps
40
Battery CCA
623
Battery volts
12
About John Deere Tractor
The John Deere 5103 tractor is part of the 9R tractor series. The 5103 is a Utility Tractors type, which is used most often in Agriculture Tractors. The engine of the 5103 tractor generates. This setup boosts real-world efficiency.