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New Holland T9.645 vs New Holland T9.645 SmartTrax II
Verdict: New Holland T9.645 vs New Holland T9.645 SmartTrax II
The New Holland T9.645 and the New Holland T9.645 SmartTrax II are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 580 hp. New Holland T9.645 is the lighter machine (19,979 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 holds more fuel (1816.8 L vs 1722.2 L) for longer stints between fills. Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.
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Fit & specs
New Holland
62
Fit score
Best match
Clear
New Holland
62
Fit score
Best match
Clear
Rated power
580 hp
580 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
New Holland (a part of CNH)Reference
New Holland (a part of CNH)Reference
Gear 2 used for pull test.Reference
liquid-cooledReference
Steering
hydrostatic power articulatedReference
hydrostatic power articulatedReference
Trailer brakes
hydraulicReference
hydraulicReference
Drive
—
articulated crawlerReference
Variants
T9.645
wheeledReference
wheeledReference
T9.645 SmartTrax
crawlerReference
crawlerReference
Steiger 580
similar CaseIH modelReference
—
Engine
Fuel tank
1816.8 LReference
1722.2 LReference
Exhaust fluid (DEF)
249.8 LReference
249.8 LReference
Engine (gross)
432.5 kWReference
432.5 kWReference
Engine (max)
475.8 kWReference
475.8 kWReference
Drawbar (tested)
369.3 kWReference
—
Displacement
12.9 LReference
12.9 LReference
Bore/Stroke
135 x 150 mmReference
135 x 150 mmReference
Emissions
Tier IVReference
Tier IVReference
Emission control
selective catalytic reduction with diesel oxidation catalystReference
selective catalytic reduction with diesel oxidation catalystReference
Rated Power (gross)
432.5 kWReference
432.5 kWReference
Maximum Power (gross)
475.8 kWReference
475.8 kWReference
Fuel system
electronic direct-injection high pressure common railReference
electronic direct-injection high pressure common railReference
Cooling system
hydraulic fan driveReference
hydraulic fan driveReference
Rated RPM
2100Reference
2100Reference
Torque
2756.7 NmReference
2756.7 NmReference
Torque RPM
1400Reference
1400Reference
Starter
electricReference
electricReference
Starter volts
24Reference
24Reference
Max power
369.3 kWReference
—
Power at rated engine speed
356.0 kWReference
—
Transmission
Transmission
Ultra CommandReference
Ultra CommandReference
Gears
17 forward and 2 reverseReference
17 forward and 2 reverseReference
PTO & Hydraulics
PTO (claimed)
352.7 kWReference
356.4 kWReference
PTO (tested)
402.9 kWReference
—
Type
full power shiftReference
full power shiftReference
Valves
4 to 8Reference
4 to 8Reference
Standard Pump flow
159.0 lpmReference
159.0 lpmReference
High-Flow Pump flow
215.7 lpmReference
215.7 lpmReference
MegaFlow Pump flow
427.7 lpmReference
427.7 lpmReference
Rear Type
IVNReference
IVNReference
Control
position controlReference
position controlReference
Rear lift (at 24"/610mm)
8900 kgReference
8900 kgReference
Rear Arms
adjustable link endsReference
adjustable link endsReference
Drawbar
Cat. 5Reference
Cat. 5Reference
Rear PTO
independentReference
independentReference
Rear PTO Type
1000 (1.75)Reference
1000 (1.75)Reference
Engine RPM
1000@1811Reference
—
Power at rated PTO speed
399.6 kWReference
—
Dimensions
Wheelbase
391 cmReference
391 cmReference
Weight
19979 kgReference
26639 kgReference
Front tire
710/70Reference
—
Rear tire
710/70Reference
—
Ag front
710/70 R42Reference
—
Ag rear
710/70 R42Reference
—
Length
749 cmReference
—
Width
304 cmReference
91 cmReference
Height (cab)
396 cmReference
—
Shipping weight
19979 kgReference
26639 kgReference
Max weight
29937 kgReference
29030 kgReference
Front axle
139 by 3048 mmReference
139 by 3048 mmReference
Bar rear axle
139 by 3048 mmReference
139 by 3048 mmReference
T9.645 Serial Numbers
2014
ZDFxxxxxxReference
—
2015
ZEFxxxxxxReference
—
2016
ZFFxxxxxxReference
—
2017
ZGFxxxxxxReference
—
2018
ZHFxxxxxxReference
—
2019
ZJFxxxxxxReference
—
2020
ZKFxxxxxxReference
—
2021
ZLFxxxxxxReference
—
Electrical
Ground
negativeReference
negativeReference
Charging system
alternatorReference
alternatorReference
Charging amps
200Reference
200Reference
Batteries
2Reference
2Reference
Battery CCA
1000Reference
1000Reference
Battery volts
12Reference
12Reference
Test results
Fuel use
107.1 l/hourReference
—
Max pull
24754 kgReference
—
New Holland T9.645 SmartTrax II Tracks
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.