John Deere 4450
The John Deere 4450 is a tractor produced by John Deere. It is equipped with a 466 ci 7.6 L engine. The listed engine power is Diesel (listed): 158.2 hp / 118.0 kW. Transmission: John Deere Power Shift. Operating weight: 12745 to 15400 pounds.
Engine Power
Diesel (listed): 158.2 hp / 118.0 kW
Fuel & Capacities
65 gal
246.0 L
Transmission
John Deere Power Shift
Operating Weight
15400 lbs*Two-wheel drive tractor with cab and Power Shift.
6985 kg
Overview
 | 1983 - 1988
50 SeriesRow-Crop tractor
50 Series
Row-Crop tractor |
|---|
Production | |
|---|---|
Manufacturer | John Deere |
Row-Crop tractor | |
Built in Waterloo, Iowa, USA | |
Original price | $46,670 (1983 Quad-Range ROPS 2WD ) |
$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 Engine | |
|---|---|
John Deere 7.6L 6-cyl diesel | |
Engine details ...  |
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 |
Performance test details ...  | |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
Final drives | inboard planetary |
Differential lock | hydraulic rear |
Power steering | |
Hydraulic wet disc brakes | |
Sound-Gard cab standard. Optional four-post Roll-Gard ROPS. | |
Capacity | |
|---|---|
Fuel | 65 gal
246.0 L |
Hydraulic system | 10.5 gal (2WD Power Shift)
39.7 L |
13.5 gal (4WD Power Shift)
51.1 L | |
16.0 gal (Quad-Range)
60.6 L | |
Hydraulics | |
|---|---|
Type | closed center |
Capacity | 10.5 gal (2WD Power Shift)
39.7 L |
13.5 gal (4WD Power Shift)
51.1 L | |
16.0 gal (Quad-Range)
60.6 L | |
Pressure | 2277 psi
157.0 bar |
Valves | 2 or 3 |
Pump flow | 26.5 gpm
100.3 lpm |
Tractor hitch | |
|---|---|
Rear Type | IIIN/II |
Control | lower-link draft sensing |
Rear lift | 6294 lbs
2854 kg |
7418 lbsOptOptional
3364 kg | |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Clutch | hydraulic wet disc |
Rear PTO Type | 540/1000 |
Engine RPM | 540@2200 |
1000@2200 | |
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 ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Charging amps | 72 |
90 *With Sound-Gard cab | |
Batteries | 2 |
Battery volts | 6 |
12 OptOptional | |
References | |
|---|---|
 | |
Loaders, Spreaders and Blades published in 1984, by John Deere | |
Tractors 100 to 190 HP published in 1984, by John Deere | |
Tractors 105 to 190 HP published in 1984, by John Deere | |
Row-Crop Tractors Product Information Handbook published in 1984, by John Deere | |
Row-Crop Tractors Product Information Handbook published in 1986, by John Deere | |
Mechanical Front-Wheel Drive published in 1984, by John Deere | |
Agricultural Price List published in 1983, by John Deere |
Engine
Engine Detail — 466 ci / 7.6 L Diesel
Manufacturer | John Deere |
Configuration | 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 |
John Deere 4450 Engine | |
|---|---|
 |
Transmission
Transmission options | |
|---|---|
16-speed partial power shift | |
15-speed full power shift |
Transmission — John Deere Quad-Range
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. | |
18.4-38 rear tires. | |
 | |
Transmission — John Deere Power Shift
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. | |
18.4-38 rear tires. | |
 | |
Dimensions
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 | |
|---|---|
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 (optional axle)
276 cm | |
119 inches (optional axle)
302 cm | |
Height | 116.5 inches
295 cm |
Shipping weight | 12745 lbs
5781 kg |
Operating weight | 15400 lbs*Two-wheel drive tractor with cab and Power Shift.
6985 kg |
Ground clearance | 15.75 inches
40 cm |
Rack-and-pinion rear axle | 3.62 by 96 inches
91 by 2438 mm |
Rack-and-pinion rear axle | 3.62 by 109 inches
91 by 2768 mm |
Rack-and-pinion rear axle | 3.62 by 113 inches
91 by 2870 mm |
Tests
Tractor Tests | |
|---|---|
NTTL 1459: diesel Power Shift 2WD | |
NTTL 1476: diesel Quad-Range 2WD |
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 | |
|---|---|
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 |
Attachments
Attachment overview | |
|---|---|
John Deere 158 loader | |
John Deere 265 loader | |
John Deere 280 loader |
Recommended Implements & Sizing Guide
Engineering recommendations for John Deere 4450 based on its 158.2 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 5 to 7 Bottom (18")5 - 7 铧 (45 cm) | Commercial / Field Scale | Large acreage tillage; requires front ballast weights. |
Rotary Cutter / MowerMowing & Clearing | 15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼 | Commercial / Field Scale | Large commercial field and roadside mowing operations. |
Rotary TillerSeedbed Prep | 90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机 | Commercial / Field Scale | Deep intensive seedbed preparation for commercial row crops. |
Disc HarrowSecondary Tillage | 15 to 22 ft Folding Disc4.5 - 6.7 m 折叠式圆盘耙 | Commercial / Field Scale | Wide commercial field leveling; requires hydraulic remotes. |
Hay BalerHay & Forage | Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m) | Commercial / Field Scale | High-capacity commercial forage harvesting (1000 RPM PTO). |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for John Deere 4450.
Estimated Continuous Field Runtime: 7.9 hrs
Approximately 7.9 hours of continuous field operation at ~75% rated power on a full tank (65 gal / 246.1 L).
Estimated 75% Load Fuel Burn~8.2 gal/hr (31.1 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
John Deere 4450 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for John Deere 4450.
Converted Equivalents:
Horsepower (HP)158.2 hp
Kilowatts (kW)118 kW
Metric Horsepower (PS / CV)160.4 PS
Direct Competitor Comparison
Compare John Deere 4450 against same-era industry alternatives in the same horsepower class.
Current Model
John Deere
John Deere 4450
Engine Power:Diesel (listed): 158.2 hp / 118.0 kW
★ Baseline Reference
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