Compare/New Holland T9.645 SmartTrax II vs New Holland T9.655

New Holland T9.645 SmartTrax II vs New Holland T9.655

Verdict: New Holland T9.645 SmartTrax II vs New Holland T9.655

The New Holland T9.645 SmartTrax II and the New Holland T9.655 are both tractors — here is how they stack up on the figures that matter. New Holland T9.655 leads on rated power with 587 hp against 580 hp. New Holland T9.655 is the lighter machine (22,828 kg vs 26,639 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. New Holland T9.645 SmartTrax II holds more fuel (1722.2 L vs 1665.4 L) for longer stints between fills. New Holland T9.655 is the newer design (2024 vs 2014). In short: choose the New Holland T9.655 for outright pulling power, or the New Holland T9.645 SmartTrax II if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

New Holland

Fit score

Best match

Clear

New Holland

Fit score

Best match

Clear

Rated power

580 hp

587 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

New Holland (a part of CNH)Reference

liquid-cooledReference

Drive

articulated crawlerReference

—

Steering

hydrostatic power articulatedReference

—

Trailer brakes

hydraulicReference

—

Final drives

—

planetaryReference

Differential lock

—

automatic front and rearReference

Brakes

—

engine brakeReference

Variants

T9.645

wheeledReference

—

T9.645 SmartTrax

crawlerReference

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Engine

Fuel tank

1722.2 LReference

1665.4 LReference

Exhaust fluid (DEF)

249.8 LReference

Engine (gross)

432.5 kWReference

437.7 kWReference

Engine (max)

475.8 kWReference

482.5 kWReference

Displacement

12.9 LReference

Bore/Stroke

135 x 150 mmReference

Emissions

Tier IVReference

Emission control

selective catalytic reduction with diesel oxidation catalystReference

—

Rated Power (gross)

432.5 kWReference

437.7 kWReference

Maximum Power (gross)

475.8 kWReference

482.5 kWReference

Fuel system

electronic direct-injection high pressure common railReference

—

Cooling system

hydraulic fan driveReference

—

Rated RPM

2100Reference

Torque

2756.7 NmReference

—

Torque RPM

1400Reference

—

Starter

electricReference

Starter volts

24Reference

12Reference

Transmission

Ultra CommandReference

Gears

17 forward and 2 reverseReference

PTO & Hydraulics

PTO (claimed)

356.4 kWReference

394.9 kWReference

Type

full power shiftReference

Valves

4 to 8Reference

—

Standard Pump flow

159.0 lpmReference

—

High-Flow Pump flow

215.7 lpmReference

—

MegaFlow Pump flow

427.7 lpmReference

—

Rear Type

IVNReference

Control

position controlReference

—

Rear lift (at 24"/610mm)

8900 kgReference

10319 kgReference

Rear Arms

adjustable link endsReference

—

Drawbar

Cat. 5Reference

Cat 5Reference

Rear PTO

independentReference

Rear PTO Type

1000 (1.75)Reference

Pump flow

—

427.7 lpmReference

Engine RPM

—

1000@1811Reference

Dimensions

Wheelbase

391 cmReference

Weight

26639 kgReference

22828 kgReference

Shipping weight

26639 kgReference

—

Max weight

29030 kgReference

—

Front axle

139 by 3048 mmReference

Bar rear axle

139 by 3048 mmReference

Shipping

—

22828 kgReference

Max Drawbar

—

6804 kgReference

Electrical

Ground

negativeReference

Charging system

alternatorReference

Charging amps

200Reference

330Reference

Batteries

2Reference

3Reference

Battery CCA

1000Reference

950Reference

Battery volts

12Reference

New Holland T9.645 SmartTrax II Tracks

Width

91 cmReference

—

Capacities

Max capacity

—

30391 kgReference

Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.