New Holland T9.645 SmartTrax II tractor

New Holland T9.645 SmartTrax II

Power

580 hp

Production

2014-2024

Engine

Two-stage turbocharged inter-cooled and aftercooled diesel, 6-cylinder 24-valve

Transmission

Ultra Command

From the same series:

T9.600 SmartTrax II
T9.700 SmartTrax II

Introduction

New Holland T9.645 SmartTrax II Articulated Crawler Tractor

The New Holland T9.645 SmartTrax II is a high-capacity articulated crawler tractor produced between 2014 and 2024 at the Fargo, North Dakota facility. Designed for large-scale agricultural operations, this model belongs to the T9 SmartTrax series and is engineered to provide high traction and soil flotation in demanding field conditions.

Engine and Powertrain

The tractor is powered by an FPT Cursor 13 TST 6-cylinder, 24-valve engine. This power unit features a two-stage turbocharged inter-cooled and aftercooled system, utilizing electronic direct-injection high-pressure common rail fuel delivery. It delivers a rated power of 580 hp (432.5 kW) and a maximum gross power of 638 hp (475.8 kW). The engine produces 2033 lb-ft (2756.7 Nm) of torque at 1400 RPM. Emissions are managed through a selective catalytic reduction (SCR) system with a diesel oxidation catalyst to meet Tier IV standards.

Transmission and Drive System

The drivetrain utilizes an Ultra Command full power shift transmission offering 17 forward and 2 reverse gears. Steering is achieved via a hydrostatic power-assisted articulated mechanism. The tractor features an articulated crawler drive configuration, supported by 36-inch tracks, which distributes the machine's 58,730 lbs (26,639 kg) weight to enhance traction and reduce ground pressure.

Hydraulics and Hitch

The hydraulic system is a closed-center load-sensing (CCLS) design. It provides a standard pump flow of 42 gpm (159.0 lpm), with a high-flow option of 57 gpm (215.7 lpm) and a MegaFlow option reaching 113 gpm (427.7 lpm). The tractor is equipped with 4 to 8 valves. The rear hitch is a Category IVN type with adjustable link ends and position control, capable of a rear lift capacity of 19,621 lbs (8,900 kg) at 24 inches.

Operator Environment and Technology

The standard cab includes air conditioning, with an optional Comfort Ride cab suspension available to improve operator ergonomics. The system is ISOBUS compliant and integrates advanced precision farming tools, including the Intelliview IV display and IntelliSteer guidance system.

Conclusion

The New Holland T9.645 SmartTrax II is designed for high-horsepower heavy-duty traction tasks, such as deep tillage, large-scale seeding, and pulling heavy implements. Its crawler configuration and high-capacity hydraulic output make it suitable for operations requiring significant pulling force and precise implement control.

Production Information of New Holland, T9.645 SmartTrax II

  • Articulated Crawler tractor
  • Built in Fargo, North Dakota, USA
ManufacturerNew Holland (a part of CNH)

Engine Specifications of New Holland, T9.645 SmartTrax II

  • FPT Cursor 13 TST
  • Liquid-cooled
  • Two-stage turbocharged inter-cooled and aftercooled diesel
  • 6-cylinder 24-valve
StarterElectric
Torque RPM1400
Emission controlSelective catalytic reduction with diesel oxidation catalyst
Starter volts24
Maximum Power (gross)638 hp [475.8 kW]
Fuel systemElectronic direct-injection high pressure common rail
Rated Power (gross)580 hp [432.5 kW]
Displacement787 ci [12.9 L]
EmissionsTier IV
Bore/Stroke5.31x5.91 inches [135 x 150 mm]
Torque2033 lb-ft [2756.7 Nm]
Rated RPM2100
Cooling systemHydraulic fan drive

Transmission Information of New Holland, T9.645 SmartTrax II

Transmission variants 1

TransmissionUltra Command
TypeFull power shift
Gears17 forward and 2 reverse

Mechanical Specs of New Holland, T9.645 SmartTrax II

  • Cab standard with air-condioning. Optional Comfort Ride cab suspension. ISOBUS compliant; Intelliview IV; IntelliSteer
  • Wet disc brakes
DriveArticulated crawler
Trailer brakes(optional)Hydraulic
SteeringHydrostatic power articulated

Power Information of New Holland, T9.645 SmartTrax II

Rear PTOIndependent
Rear PTO Type1000 (1.75)

Hydraulics Specifications of New Holland, T9.645 SmartTrax II

TypeClosed center load sensing (CCLS)
MegaFlow Pump flow113 gpm [427.7 lpm]
High-Flow Pump flow57 gpm [215.7 lpm]
Valves4 to 8
Standard Pump flow42 gpm [159.0 lpm]

Three-Point Hitch of New Holland, T9.645 SmartTrax II

Rear Type(optional)IVN
DrawbarCat. 4
Rear ArmsAdjustable link ends
ControlPosition control
Control(optional)Cat. 5
Rear lift (at 24"/610mm)19621 lbs [8900 kg]

Electrical System of New Holland, T9.645 SmartTrax II

GroundNegative
Battery CCA1000
Batteries2
Charging systemAlternator
Battery volts12
Charging amps200

Where it sits

With 580 HP, the New Holland T9.645 SmartTrax II sits between T9.600 SmartTrax II (535 HP) and T9.700 SmartTrax II (620 HP) in New Holland's range. Its power puts it in the 99th percentile of 2010s models in our database (2476 machines).

Frequently asked questions

How much horsepower does the New Holland T9.645 SmartTrax II have?

The New Holland T9.645 SmartTrax II delivers 580 HP.

What years was the New Holland T9.645 SmartTrax II produced?

The New Holland T9.645 SmartTrax II was produced in 2014-2024.

What engine does the New Holland T9.645 SmartTrax II have?

The New Holland T9.645 SmartTrax II is powered by a Two-stage turbocharged inter-cooled and aftercooled diesel, 6-cylinder 24-valve engine.

What transmission does the New Holland T9.645 SmartTrax II use?

The New Holland T9.645 SmartTrax II uses a Ultra Command transmission.

Compare the New Holland T9.645 SmartTrax II with another model