John Deere 9400 Tractor

Manufacturer John Deere
Price 121,000(USD)
Model 9400
Equipment Type Four-wheel Drive 4WD Tractors
Factory Waterloo, Iowa, USA

ENGINE DETAIL

The John Deere 9400 features a robust 12.5L turbocharged diesel engine, producing 425hp and operating efficiently at 2100 RPM, making it suitable for heavy-duty applications such as tillage and planting. Its 16:1 compression ratio enhances fuel efficiency and torque output, while the large bore and stroke design aids in optimal power delivery at low RPMs. However, the significant coolant capacity of 64 quarts indicates the need for a well-maintained cooling system to manage heat effectively during extended operations.

Description John Deere turbocharged aftercooled diesel 6-cylinder liquid-cooled inline
Displacement 765ci / 12.5L
Bore/Stroke 5.00x6.50inches / 127x 165mm
Power 425hp / 316.9kW
Compression 16:1
Rated RPM 2100
Coolant capacity 64qts / 60.6L

ENGINE OIL

The John Deere 9400 tractor has an oil capacity of 44 quarts (41.6 liters), which is essential for optimal engine lubrication and cooling, ensuring reliability under heavy-duty operations. Regular maintenance intervals should be adhered to, as inadequate oil levels can lead to increased wear or potential engine failure. Given its capacity, operators should be prepared for substantial oil changes, particularly when used in demanding agricultural environments.

Oil capacity 44qts / 41.6L

JOHN DEERE 9400 ENGINE

The John Deere 9400 features a robust 12.5L 6-cylinder diesel engine, providing high torque and fuel efficiency, ideal for heavy-duty applications such as plowing and hauling. Its high horsepower output translates to increased productivity, but maintenance can be complex due to its size. Optimal for large agricultural operations, it excels in scenarios requiring sustained power under load, though its weight and dimensions may pose challenges in smaller fields or tighter spaces.

Description John Deere 12.5L 6-cyl diesel

TRANSMISSIONS OVERVIEW

The John Deere 9400 tractor features a 12-speed partially synchronized transmission, offering smooth gear changes for standard applications, while the 24-speed partial power shift provides versatility for varying load conditions. The 12-speed full power shift enhances efficiency in high-demand scenarios, allowing for uninterrupted power delivery during operations. Key advantages include improved torque management and reduced operator fatigue, but challenges may arise in maintenance complexity and initial purchase cost.

Description 12-speed partially synchronized 24-speed partial power shift 12-speed full power shift

TRANSMISSION 1

The John Deere 9400 features a partially synchronized transmission with 12 forward and 3 reverse gears, allowing for effective speed management across various farming tasks. The requirement to stop and use the clutch for range shifts, combined with the lack of reverse in the highest (D) range, could pose challenges in fast-paced operations, particularly in tight spaces. However, the substantial oil capacity of up to 155.6 quarts, depending on the axle configuration, enhances cooling and lubrication, promoting longevity and performance efficiency in demanding applications.

Transmission John Deere Syncro
Type partially synchronized
Gears 12 forward and 3 reverse
Oil capacity 147.2qts (100mm axle) / 139.3L 151.6qts (110mm axle) / 143.5L 151.2qts (PTO 100mm axle) / 143.1L 155.6qts (PTO 110mm axle) / 147.3L 140qts (SN030001+) / 132.5L
Description Three speeds (1-3 and reverse) in four ranges (A-D). Synchronized shifting between speeds using the clutch. Tractor must be stopped, and clutch used, to shift ranges. Reverse is not available in the highest (D) range

SPEEDS 1

Description With 710/70R38 tires

TRANSMISSION 2

The John Deere 9400 features a PowrSync transmission with 24 forward and 6 reverse gears, providing versatility for various applications. Its partial power shift system allows for on-the-move gear changes across four ranges (A-D), enhancing productivity and operational flexibility but may require skilled operators to fully leverage its capabilities. The oil capacity ranges significantly, depending on axle specifications, necessitating careful monitoring to prevent overheating and ensure efficient operation.

Transmission John Deere PowrSync
Type partial power shift
Gears 24 forward and 6 reverse
Oil capacity 147.2qts (100mm axle) / 139.3L 151.6qts (110mm axle) / 143.5L 151.2qts (PTO 100mm axle) / 143.1L 155.6qts (PTO 110mm axle) / 147.3L 140qts (SN030001+) / 132.5L
Description Three speeds (1, 2, 3 and reverse) in four ranges (A-D) plus high-low power shift. Speeds and ranges may be shifted on the move, using the clutch. High-low power shift for each speed using lever

SPEEDS 2

Description With 710/70R38 tires

TRANSMISSION 3

The John Deere 9400 features a PowerShift transmission with 12 forward and 2 reverse gears, offering seamless gear transitions which enhance operational efficiency, particularly in heavy-duty applications such as plowing and cultivating. With an oil capacity ranging from 60 to 120 quarts depending on the configuration, it's essential to monitor fluid levels for optimal transmission performance and longevity. The variety in oil capacities for different axle and PTO options presents flexibility but may complicate maintenance if operators are unaware of their specific model's requirements.

Transmission John Deere PowerShift
Type full power shift
Gears 12 forward and 2 reverse
Oil capacity 64qts (early) / 60.6L 56qts (SN030001+) 53.0L / 60qts (no PTO early) 56.8L / 54qts (no PTO late) 51.1L / 120qts (axles early) 113.6L / 108qts (axles SN030001+) 102.2 L

SPEEDS 3

Description With 710/70R38 tires

JOHN DEERE 9400 TRANSMISSIONS

The John Deere 9400 tractor features a sophisticated 24-speed partial power shift transmission, offering smooth shifting capabilities suitable for varied agricultural tasks, enhancing productivity and operator comfort. Its 12-speed partially synchronized and full power shift options provide flexibility in load management and terrain adaptability, crucial for optimizing power delivery and fuel efficiency. However, the complexity of the transmission system may present maintenance challenges that require knowledgeable technicians for effective troubleshooting and servicing.

Description 12-speed partially synchronized 24-speed partial power shift 12-speed full power shift

MECHANICAL

The John Deere 9400 tractor features a robust four-wheel drive system, enhancing traction and stability in challenging terrain. Its hydrostatic power steering provides precise maneuverability, ideal for tight workspaces or transport. However, the hydraulic wet disc brakes require proper maintenance to ensure optimal performance over time.

Description Four-wheel drive Hydraulic wet disc brakes Cab standard
Steering hydrostatic power

CAPACITY

Fuel 256gal / 969.0L
Hydraulic system 26gal / 98.4L

HYDRAULICS

Type closed center PFC
Capacity 26gal / 98.4L
Pressure 2900psi / 200.0bar
Valve 2 to 5
Pump flow 35gpm / 132.5lpm
Total flow 44gpm / 166.5lpm

TRACTOR HITCH

Rear Type III/IV/IVN OptOptional
Rear lift 13,871lbs / 6291kg 14,445lbs*Cat. IV / 6552kg

POWER TAKE-OFF (PTO)

Rear PTO independent
Rear RPM 1000 OptOptional

JOHN DEERE 9400 TIRES

The John Deere 9400 features a robust tire configuration with both front and rear 710/70R38 tires, optimizing traction and stability on various terrains. This tire size enhances flotation and reduces soil compaction, making it ideal for heavy-duty agricultural tasks. However, the larger footprint may pose challenges in narrower rows or soft ground conditions, necessitating careful maneuvering.

Ag front 710/70R38
Ag rear 710/70R38

DIMENSIONS & TIRES

The John Deere 9400 features a substantial wheelbase of 137.8 inches, enhancing stability and traction, particularly suited for heavy-duty field tasks. Its weight range of 33,770 to 37,410 pounds aids in soil compaction but may require careful consideration of soil conditions to avoid excessive disruption. The dual 710/70R38 tire configuration offers excellent flotation and grip, making it ideal for diverse terrains but may pose challenges in narrow spaces or for transport on public roads.

Wheelbase 137.8inches / 350cm
Weight 33770 to 37410 pounds
Front tire 710/70R38
Rear tire 710/70R38

9400 SERIAL NUMBERS

1999 20001
2001 40001

9400 SERIAL LOCATION

Description Serial number plate on the top-left of the tractor's hinge

ELECTRICAL

Groun negative
Charging syste alternator
Charging amp 140
Batterie 3
Battery CC 925
Battery volt 12


Last Updated 2025-01-01
Stephen is a passionate tractor hobbyist with a deep-seated love for all things mechanized and agricultural. Growing up in a rural setting, he developed a fascination with these mighty machines that have played a crucial role in shaping the farming industry.

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