New Holland T9.645

The New Holland T9.645 is a tractor produced by New Holland. It is equipped with a 787 ci 12.9 L engine. The listed engine power is Diesel (gross): 580 hp / 432.5 kW. Transmission: Ultra Command. Operating weight: 44046 lbs 19979 kg.

Engine Power

Diesel (gross): 580 hp / 432.5 kW

Fuel & Capacities

480 gal 1816.8 L

Transmission

Ultra Command

Operating Weight

44046 lbs 19979 kg

Overview

	2014 - 2023 T9 SeriesFour-wheel Drive (4WD) tractor T9 Series Four-wheel Drive (4WD) tractor

Production
Manufacturer	New Holland (a part of CNH)
Four-wheel Drive (4WD) tractor
Built in Fargo, North Dakota, USA

Variants
T9.645	wheeled
T9.645 SmartTrax	crawler
Steiger 580	similar CaseIH model

New Holland T9.645 Engine
FPT 12.9L 6-cyl diesel
Fuel tank	480 gal 1816.8 L
Exhaust fluid (DEF)	66 gal 249.8 L
Engine details ...

New Holland T9.645 Transmission
17-speed full power shift
Transmission details ...

New Holland T9.645 Power
Engine (gross)	580 hp 432.5 kW
Engine (max)	638 hp 475.8 kW
PTO (claimed)	473 hp 352.7 kW
Drawbar (tested)	495.25 hp 369.3 kW
PTO (tested)	540.36 hp 402.9 kW
Performance test details ...

Mechanical
Four-wheel drive
Steering	hydrostatic power articulated
Wet disc brakes
Trailer brakes	hydraulic OptOptional
Cab standard with air-condioning. Optional Comfort Ride cab suspension. ISOBUS compliant; Intelliview IV; IntelliSteer

Hydraulics
Type	closed center load sensing (CCLS)
Valves	4 to 8
Standard Pump flow	42 gpm 159.0 lpm
High-Flow Pump flow	57 gpm 215.7 lpm
MegaFlow Pump flow	113 gpm 427.7 lpm

Tractor hitch
Rear Type	IVN OptOptional
Control	position control
Rear lift (at 24"/610mm)	19621 lbs 8900 kg
Rear Arms	adjustable link ends
Drawbar	Cat. 4
	Cat. 5 OptOptional

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	1000 (1.75)
Engine RPM	1000@1811

Dimensions & Tires
Wheelbase	154 inches 391 cm
Weight	44046 lbs 19979 kg
Front tire	710/70
Rear tire	710/70
Full dimensions and tires ...

Electrical
Ground	negative
Charging system	alternator
Charging amps	200
Batteries	2
Battery CCA	1000
Battery volts	12

References

T9 Series published in 2018, by New Holland

Engine

Engine Detail — 787 ci / 12.9 L Diesel

Manufacturer	FPT Cursor 13 TST
Configuration	two-stage turbocharged inter-cooled and aftercooled diesel, 6-cylinder 24-valve, liquid-cooled
Displacement	787 ci 12.9 L
Bore/Stroke	5.31x5.91 inches 135 x 150 mm
Emissions	Tier IV
Emission control	selective catalytic reduction with diesel oxidation catalyst
Rated Power (gross)	580 hp 432.5 kW
Maximum Power (gross)	638 hp 475.8 kW
Fuel system	electronic direct-injection high pressure common rail
Cooling system	hydraulic fan drive
Rated RPM	2100
Torque	2033 lb-ft 2756.7 Nm
Torque RPM	1400
Starter	electric
Starter volts	24

Transmission

Transmission — Ultra Command

Transmission	Ultra Command
Type	full power shift
Gears	17 forward and 2 reverse

Dimensions

New Holland T9.645 Tires
Ag front	710/70 R42
Ag rear	710/70 R42

Dimensions
Wheelbase	154 inches 391 cm
Length	295 inches 749 cm
Width	120 inches*Minimum 304 cm
Height (cab)	156 inches 396 cm
Shipping weight	44046 lbs 19979 kg
Max weight	66000 lbs 29937 kg
Front axle	Bar: 5.5 by 120 inches 139 by 3048 mm
Bar rear axle	5.5 by 120 inches 139 by 3048 mm

Tests

OCED Tractor Test 2162A
Diesel 16-speed 4WD October 6 - 11, 2016 Link: OCED Tractor Test 2162A file
PTO performance
Max power	540.36 hp 402.9 kW
Fuel use	27.9 gal/hour 105.6 l/hour
Power at rated engine speed	477.38 hp 356.0 kW
Fuel use	26.0 gal/hour 98.4 l/hour
Power at rated PTO speed	535.92 hp 399.6 kW
Fuel use	27.3 gal/hour 103.3 l/hour
Drawbar performance
Max power	495.25 hp 369.3 kW
Fuel use	28.3 gal/hour 107.1 l/hour
Gear 5 used for power test.
Max pull	54573 lbs 24754 kg
Gear 2 used for pull test.

Photos

New Holland T9.645 tractor photo

Recommended Implements & Sizing Guide

Engineering recommendations for New Holland T9.645 based on its 580 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	8+ Bottom On-Land Hitch8+ 铧重型机外牵引犁	Commercial / Field Scale	High horsepower articulated/4WD field plowing.
Rotary Cutter / MowerMowing & Clearing	15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼	Commercial / Field Scale	Large commercial field and roadside mowing operations.
Rotary TillerSeedbed Prep	90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机	Commercial / Field Scale	Deep intensive seedbed preparation for commercial row crops.
Disc HarrowSecondary Tillage	24 to 36 ft Heavy Duty Field Disc7.3 - 11.0 m 超宽重型整地耙	Commercial / Field Scale	Broad-acre grain tillage for high-drawbar tractors.
Hay BalerHay & Forage	Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m)	Commercial / Field Scale	High-capacity commercial forage harvesting (1000 RPM PTO).

Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for New Holland T9.645.

Estimated Continuous Field Runtime: 15.9 hrs

Approximately 15.9 hours of continuous field operation at ~75% rated power on a full tank (480 gal / 1817 L).

Estimated 75% Load Fuel Burn~30.2 gal/hr (114.2 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)

Standard Spec: API CK-4 / CJ-4 Heavy Duty

Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)

Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)

Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix

Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze

Service Interval: 2 Years / 1500 Hours