John Deere 4450 tractor specifications

1983 - 1988

1983 - 1988 50 SeriesRow-Crop tractor

Production

Production Manufacturer:John Deere
Type:Row-Crop tractor
Factory:Waterloo, Iowa, USA
Original price:$46,670 (1983 Quad-Range ROPS 2WD )
Original price:$67,009 (1983 Power Shift Cab 4WD )
The John Deere 4450 was the best-selling model of the entire 50-series line of tractors. The 4450 alone accounted for 20% of sales in the line. John Deere introduced its Caster/Action front-wheel drive system on these tractors. By enabling the tractors' front wheels to angle up to 13-degrees, sharper turn angles and larger front tires could be used.

John Deere 4450 Power

John Deere 4450 Power Engine:158.2 hp
118.0 kW
Drawbar (claimed):121 hp
90.2 kW
PTO (claimed):140 hp
104.4 kW
Drawbar (tested):120.11 hp
89.6 kW
PTO (tested):140.43 hp
104.7 kW
power test details ...

1983 - 1988

50 Series

Row-Crop tractor

Nebraska Tractor Test 1459

Nebraska Tractor Test 1459
Diesel Power Shift 2WD October 13 - November 4, 1982 Link: Nebraska Tractor Test 1459 file
PTO performance
Power at rated engine speed:	140.43 hp 104.7 kW
Fuel use:	8.7 gal/hour 32.9 l/hour
Drawbar performance
Max power:	117.46 hp 87.6 kW
Fuel use:	8.6 gal/hour 32.6 l/hour
Gear 10 used for power test.
Max pull:	15,015 lbs 6810 kg
Gear 4 used for pull test.

Nebraska Tractor Test 1476

Nebraska Tractor Test 1476
Diesel Quad-Range 2WD April 4 - 25, 1983 Link: Nebraska Tractor Test 1476 file
PTO performance
Power at rated engine speed:	140.33 hp 104.6 kW
Fuel use:	8.6 gal/hour 32.6 l/hour
Drawbar performance
Max power:	120.11 hp 89.6 kW
Fuel use:	8.3 gal/hour 31.4 l/hour
Max pull:	15,069 lbs 6835 kg

John Deere 4450 Engine

John Deere 4450 Engine John Deere 7.6L 6-cyl diesel Engine details ...

1983 - 1988

50 Series

Row-Crop tractor

Engine Detail

Engine Detail
John Deere
turbocharged diesel
6-cylinder
liquid-cooled
Displacement:	466 ci 7.6 L
Bore/Stroke:	4.56x4.75 inches 116 x 121 mm
Power:	158.2 hp 118.0 kW
Air cleaner:	dry
Compression:	15.8:1
Rated RPM:	2200
Firing order:	1-5-3-6-2-4
Starter volts:	12
Oil capacity:	18 qts 17.0 L
Coolant capacity:	27 qts 25.6 L

Mechanical

Mechanical Chassis:4x2 2WD
4x4 MFWD 4WD
Final drives:inboard planetary
Differential lock:hydraulic rear
Steering:power
Brakes:hydraulic wet disc
Cab:Sound-Gard cab standard. Optional four-post Roll-Gard ROPS.
Transmissions:16-speed partial power shift
15-speed full power shift
Transmission details ...

1983 - 1988

50 Series

Row-Crop tractor

Transmissions overview

Transmissions overview
16-speed partial power shift
15-speed full power shift

Transmission

Transmission
Transmission:	John Deere Quad-Range
Type:	partial power shift
Gears:	16 forward and 6 reverse
Clutch:	Perma-Clutch wet disc
Oil capacity:	64 qts 60.6 L
Tractor must be stopped to select one of four ranges. Clutchless power shift between speeds 1-2 and 3-4 in range. A synchronized shift (using clutch) can be made between 2 and 3 in range.

Speeds

Speeds
18.4-38 rear tires.

Transmission

Transmission
Transmission:	John Deere Power Shift
Type:	full power shift
Gears:	15 forward and 4 reverse
Clutch:	Perma-Clutch wet disc
2WD Oil capacity:	42 qts 39.7 L
4WD Oil capacity:	54 qts 51.1 L
Optional transmission. Full (clutchless) power shift can be made between gears, forward and reverse.

Speeds

Speeds
18.4-38 rear tires.

Capacity

Capacity Fuel:65 gal
246.0 L
Hydraulic system:10.5 gal
39.7 L (2WD Power Shift)
13.5 gal
51.1 L (4WD Power Shift)
16.0 gal
60.6 L (Quad-Range)

Hydraulics

Hydraulics Type:closed center
Capacity:10.5 gal
39.7 L (2WD Power Shift)
13.5 gal
51.1 L (4WD Power Shift)
16.0 gal
60.6 L (Quad-Range)
Pressure:2277 psi
157.0 bar
Valves:2 or 3
Pump flow:26.5 gpm
100.3 lpm

Tractor hitch

Tractor hitch Rear Type:IIIN/II
Control:lower-link draft sensing
Rear lift:6294 lbs
2854 kg
7418 lbs
3364 kg *Optional

Power Take-off (PTO)

Power Take-off (PTO) Rear PTO:independent
Clutch:hydraulic wet disc
Rear RPM:540/1000
Engine RPM:540@2200
1000@2200

Dimensions & Tires

Dimensions & Tires 2WD Wheelbase:106.7 inches
271 cm
4WD Wheelbase:105.3 inches
267 cm
Weight:12745 to 15400 pounds
Front tire:10.00-16
2WD Rear tire:18.4-38
Full dimensions and tires ...

1983 - 1988

50 Series

Row-Crop tractor

John Deere 4450 Tires

John Deere 4450 Tires
2WD Standard tires (ag):	Front: 10.00-16. Rear: 18.4-38
4WD Standard tires (ag):	Front: 14.9-26. Rear: 18.4-38
Ag rear:	23.1-34
	16.9-38
	20.8-38
	20.8R38
	18.4-42
	18.4R42

Dimensions

Dimensions
2WD Wheelbase:	106.7 inches 271 cm
4WD Wheelbase:	105.3 inches 267 cm
2WD Length:	154.1 inches 391 cm
4WD Length:	164.1 inches 416 cm
Width:	96 inches 243 cm
	109 inches 276 cm (optional axle)
	119 inches 302 cm (optional axle)
Height:	116.5 inches 295 cm
Shipping weight:	12745 lbs 5781 kg
Operating weight:	15400 lbs 6985 kg *Two-wheel drive tractor with cab and Power Shift.
Ground clearance:	15.75 inches 40 cm
Rear axle:	Rack-and-pinion: 3.62 by 96 inches 91 by 2438 mm
Rear axle:	Rack-and-pinion: 3.62 by 109 inches 91 by 2768 mm
Rear axle:	Rack-and-pinion: 3.62 by 113 inches 91 by 2870 mm

John Deere 4450 attachments

John Deere 4450 attachments front-end loader Attachment details ...

1983 - 1988

50 Series

Row-Crop tractor

John Deere 158 Loader

John Deere 158 Loader
For use on tractors with two-wheel drive.
Loader weight:	1771 lbs 803 kg
Height (to pin):	156 inches 396 cm
Clearance, dumped bucket:	127 inches 322 cm
Dump reach:	28 inches 71 cm
Dump angle:	37°
Clearance, level bucket:	149 inches 378 cm
Rollback angle:	14°
Breakout force (lift):	4621 lbs 2096 kg
Lift to full height (at pin):	3634 lbs 1648 kg
Bucket capacity:	0.5 cu yd 0.4 cu m
	0.6 cu yd 0.5 cu m
	0.8 cu yd 0.6 cu m
	0.9 cu yd 0.7 cu m
Bucket width:	60 inches 152 cm
	72 inches 182 cm
	84 inches 213 cm
	96 inches 243 cm

John Deere 265 Loader

John Deere 265 Loader
For use on tractors with two-wheel drive.
Loader weight:	2619 lbs 1187 kg
Height (to pin):	157 inches 398 cm
Clearance, dumped bucket:	123 inches 312 cm
Dump reach:	25.6 inches 65 cm
Clearance, level bucket:	150 inches 381 cm
Rollback angle:	43°
Breakout force (lift):	5730 lbs 2599 kg
Lift to full height (at pin):	3920 lbs 1778 kg
Bucket width:	61 inches 154 cm
	73 inches 185 cm
	85 inches 215 cm
	97 inches 246 cm

John Deere 280 Loader

John Deere 280 Loader
For use on tractors with four-wheel drive.
Loader weight:	2795 lbs 1267 kg
Height (to pin):	178 inches 452 cm
Clearance, dumped bucket:	152 inches 386 cm
Dump reach:	26 inches 66 cm
Dump angle:	44°
Clearance, level bucket:	173 inches 439 cm
Rollback angle:	41°
Breakout force (lift):	5126 lbs 2325 kg
Lift to full height (at pin):	3718 lbs 1686 kg
Bucket width:	85 inches 215 cm
	97 inches 246 cm

4450 Serial Numbers

4450 Serial Numbers Location:Serial number plate on rear of tractor.
photo of 4450 serial number
1983:1000
1984:11001
1985:18001
1986:22001
1987:24001
1988:26001
1989:31001

how to read serial numbers...