John Deere 6430

Last Updated: July 2024

Overview

The John Deere 6430 is a mid-range utility tractor powered by a 4.5 L turbocharged diesel engine capable of producing a maximum power output of 111.06 hp at 1995 rpm, with a peak torque of 326 lb-ft at 1597 rpm and 39.1% torque rise. It features hydrostatic power steering, a thermostatically controlled cooling system with a variable speed fan, and a selective gear fixed ratio transmission with partial power shift. The tractor is equipped with radial tires, with rear tires being 460/85R38 and front tires 380/85R24, both inflated to 12 psi. The unladen operating weight is 9985 lb. The hydraulic system utilizes John Deere Hy-Gard II fluid and has a direct engine drive. The three-point hitch is classified as Category II, with detailed lift forces and pressures outlined in the test results.

Key Specifications

Category: Utility

Power Output: 111.06 at 1995 rpm (Maximum Power)

Transmission: Selective gear fixed ratio with partial power shift

Drive Type: 4x2 2WD or 4x4 MFWD 4WD

Operating Weight: 9985 (unladen)

Fuel Type: Diesel

John Deere 6430 vs. Similar Tractors

Power Output

Excellent

Greater than 99% of similar tractors.

Hitch Capacity

Above Average

Greater than 73% of similar tractors.

Operating Weight

Poor

Greater than 5% of similar tractors.

Technical Specifications

Engine

Manufacturer: John Deere
Model: 4045HL281 PowerTech E
Cooling Type: Liquid-cooled with thermostat and variable speed fan
Cylinder Orientation: Inline
Valve Configuration: OHV
Fuel Type: Diesel
Induction Type: Turbocharged
Cylinders: 4
Displacement (ci): 276
Bore (in): 4.19
Stroke (in): 5
Rated RPM: 2300
Power Output (hp): 111.06 at 1995 rpm (Maximum Power)

Transmission

Type: Selective gear fixed ratio with partial power shift
Forward Gears: 12 or 16 or 24 (depending on transmission model)
Reverse Gears: 4 or 16 (depending on transmission model)
Total Gears: -

Dimensions

Length (in): -
Width (in): -
Height (in): -
Operating Weight (lb): 9985 (unladen)

Power Take-Off (PTO)

PTO Type: Independent
PTO Speed 1 (rpm): 540
PTO Speed 2 (rpm): 540/1000 (if equipped with dual-speed PTO)
PTO Speed 3 (rpm): -

Miscellaneous

Chassis: -
Drive Type: 4x2 2WD or 4x4 MFWD 4WD
Steering Type: Hydrostatic power
Coolant Capacity (qts): 28 (ROPS)
Front Tire Diameter (in): -
Front Tire Width (in): -
Rear Tire Diameter (in): -
Rear Tire Width (in): -
Front/Rear Rim Diameter (in): -
Tire Type: Rear: Two 460/85R38, 12 psi; Front: Two 380/85R24, 12 psi
Manufacture - End Year: -
Hitch Type: Three-Point Hitch
Hitch Category: Category II
Hitch Position: Rear
Hitch Capacity (lb): 4455
Operator Station Type: Open, Cab (optional)
Starter Type: Electric Starter
Brake Type: -
Hydraulic System Type: Open-center load sensing or Optional closed-center pressure-flow compensated

Test Results

Nebraska Tractor Test Laboratory - Test Date: March to April, 2007

Maximum Power and Fuel Consumption

Rated Engine Speed (PTO speed-1042 rpm): 97.0 HP (72.3 kW) at 2300 rpm, 6.00 Gal/hr (22.73 l/h), 0.433 lb/hp.hr (0.263 kg/kW.h), 16.15 Hp.hr/gal (3.18 kW.h/l)
Standard Power Take-off Speed (1000 rpm): 104.9 HP (78.2 kW) at 2208 rpm, 6.25 Gal/hr (23.66 l/h), 0.416 lb/hp.hr (0.253 kg/kW.h), 16.78 Hp.hr/gal (3.31 kW.h/l)
Maximum Power (1 hour): 112.5 HP (83.9 kW) at 1903 rpm, 6.47 Gal/hr (24.48 l/h), 0.402 lb/hp.hr (0.244 kg/kW.h), 17.40 Hp.hr/gal (3.43 kW.h/l)

Drawbar Performance

Maximum Power—10th (C2) Gear: 88.2 HP (65.8 kW), Drawbar Pull: 7105 lbs (31.61 kN), Speed: 4.66 mph (7.49 km/h), Fuel Consumption: 0.487 lb/hp.hr (0.297 kg/kW.h), 14.34 Hp.hr/gal (2.83 kW.h/l)
75% of Pull at Maximum Power—10th (C2) Gear: 68.9 HP (51.4 kW), Drawbar Pull: 5310 lbs (23.61 kN), Speed: 4.87 mph (7.84 km/h), Fuel Consumption: 0.545 lb/hp.hr (0.332 kg/kW.h), 12.83 Hp.hr/gal (2.53 kW.h/l)
50% of Pull at Maximum Power—10th (C2) Gear: 46.9 HP (34.9 kW), Drawbar Pull: 3510 lbs (15.61 kN), Speed: 5.01 mph (8.06 km/h), Fuel Consumption: 0.652 lb/hp.hr (0.396 kg/kW.h), 10.73 Hp.hr/gal (2.11 kW.h/l)

Torque and Engine Performance

Maximum Torque: 327 lb.-ft. (444 Nm) at 1499 rpm
Torque Rise: 48.0%
Torque Rise at 1800 Engine RPM: 46%

Hydraulic Performance

Maximum Force Exerted: 6398 lbs (28.5 kN) (with 80 mm cylinders)
Pump Delivery Rate at Minimum Pressure: 33.3 GPM (125.9 l/min)
Pump Delivery Rate at Maximum Hydraulic Power: 29.0 GPM (109.7 l/min)
Hydraulic Power: 46.9 HP (35.0 kW) at a delivery pressure of 2715 psi (187 bar)

Overall Efficiency

Fuel Efficiency at Rated Engine Speed: 16.15 Hp.hr/gal (3.18 kW.h/l)
Fuel Consumption at Standard PTO Speed (1000 rpm): 6.25 Gal/hr (23.66 l/h)

NTTL.(2007). Nebraska Summary: S630 John Deere 6430. Lincoln, NE: Nebraska Tractor Test Laboratory. Retrieved from https://digitalcommons.unl.edu/tractormuseumlit/2911