New Holland T9.645 SmartTrax II
The New Holland T9.645 SmartTrax II 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. Drive type: articulated crawler. Operating weight: 58730 lbs 26639 kg.
Overview
![]() | 2014 -
T9 SeriesArticulated Crawler tractor |
|---|---|
2014 - | |
T9 Series | |
Articulated Crawler tractor | |
Production | |
|---|---|
Manufacturer | New Holland (a part of CNH) |
Articulated Crawler tractor | |
Built in Fargo, North Dakota, USA | |
Variants | |
|---|---|
T9.645 | wheeled |
T9.645 SmartTrax | crawler |
New Holland T9.645 SmartTrax II Engine | |
|---|---|
FPT 12.9L 6-cyl diesel | |
Fuel tank | 455 gal
1722.2 L |
Exhaust fluid (DEF) | 66 gal
249.8 L |
Engine details ... | |
New Holland T9.645 SmartTrax II Transmission | |
|---|---|
17-speed full power shift | |
Transmission details ... |
New Holland T9.645 SmartTrax II Power | |
|---|---|
Engine (gross) | 580 hp
432.5 kW |
Engine (max) | 638 hp
475.8 kW |
PTO (claimed) | 478 hp
356.4 kW |
Mechanical | |
|---|---|
Drive | articulated crawler |
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) |
Dimensions & Tracks | |
|---|---|
Wheelbase | 154 inches
391 cm |
Weight | 58730 lbs
26639 kg |
36-inch tracks | |
Full dimensions and tracks ... | |
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 SmartTrax II Tracks | |
|---|---|
Width | 36 inches
91 cm |
Dimensions | |
|---|---|
Wheelbase | 154 inches
391 cm |
Shipping weight | 58730 lbs
26639 kg |
Max weight | 64000 lbs
29030 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 |
Photos
Recommended Implements & Sizing Guide
Engineering recommendations for New Holland T9.645 SmartTrax II 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). |
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for New Holland T9.645 SmartTrax II.
Estimated Continuous Field Runtime: 15.1 hrs
Approximately 15.1 hours of continuous field operation at ~75% rated power on a full tank (455 gal / 1722.4 L).
Engine Crankcase Oil
Transmission & Hydraulic System
Engine Cooling System
New Holland T9.645 SmartTrax II Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for New Holland T9.645 SmartTrax II.
Converted Equivalents:
Direct Competitor Comparison
Compare New Holland T9.645 SmartTrax II against same-era industry alternatives in the same horsepower class.
New Holland T9.645 SmartTrax II
Related models
New Holland T9.520
- Power:
- 468.5
- Production years:
- 2024 - 2026
New Holland T9.530
- Power:
- 470
- Production years:
- 2014 - 2023
New Holland T9.530 SmartTrax II
- Power:
- 470
- Production years:
- 2018 - 2026
New Holland TJ480
- Power:
- 480
- Production years:
- 2006 - 2007
New Holland T9050
- Power:
- 485
- Production years:
- 2007 - 2010



