CaseIH Steiger 645 Quadtrac tractor

CaseIH Steiger 645 Quadtrac

Power

636 hp

Production

2024+

Engine

Turbocharged diesel, 6-cylinder 24-valve

Transmission

PowerDrive

From the same series:

Steiger 595 Quadtrac
Steiger 715 Quadtrac

Introduction

Case IH Steiger 645 Quadtrac Articulated Crawler Tractor

The Case IH Steiger 645 Quadtrac is a high-capacity articulated crawler tractor introduced in 2024. Designed for large-scale agricultural operations, this machine belongs to the Steiger Quadtrac series, focusing on heavy-duty traction and field efficiency.

Engine and Powertrain

The tractor is powered by a 12.9-liter, 6-cylinder, 24-valve turbocharged diesel engine. It delivers a rated power output of 636.2 hp (474.4 kW) at 2100 RPM, with a maximum gross power of 689.4 hp (514.1 kW). The engine meets Tier IV emissions standards and utilizes a liquid-cooling system. Power is managed through a PowerDrive full powershift transmission providing 17 forward and 2 reverse gears.

Drive System and Dimensions

Utilizing an articulated crawler drive system, the Steiger 645 Quadtrac is engineered for high flotation and minimal soil compaction. The vehicle features a 391 cm wheelbase and a base operating weight of 25,764 kg. Final drives are of planetary design to handle the high torque requirements of large-scale farming.

Hydraulics and Hitch

The tractor is equipped with a closed-center hydraulic system. Standard pump flow is 42 gpm (159.0 lpm), with optional configurations reaching up to 113 gpm (427.7 lpm). It supports 4 to 8 valves for implement control. The rear hitch is a Category IVN type, with an optional Category 5 setup, providing a rear lift capacity of 10,092 kg at 610 mm. The rear independent PTO operates at 1000 RPM.

Operator Environment

The machine comes standard with an air-conditioned cab designed for operator comfort during long operational hours. All primary controls are integrated into the cabin, which features an articulated steering system for precise maneuverability despite the tractor's significant size.

Conclusion

The Steiger 645 Quadtrac is engineered for demanding field tasks requiring high drawbar pull and significant hydraulic capacity. Its combination of a high-output turbocharged engine, advanced power-shift transmission, and crawler undercarriage makes it a primary choice for large-scale tillage and heavy implement operations.

Production Information of CaseIH, Steiger 645 Quadtrac

  • Articulated Crawler tractor
ManufacturerCaseIH (a part of CNH)

Engine Specifications of CaseIH, Steiger 645 Quadtrac

  • Liquid-cooled
  • Turbocharged diesel
  • 6-cylinder 24-valve
StarterElectric
Displacement787 ci [12.9 L]
Rated Power (gross)636.2 hp [474.4 kW]
Bore/Stroke5.31x5.91 inches [135 x 150 mm]
Starter volts12
Rated RPM2100
Maximum Power (gross)689.4 hp [514.1 kW]
EmissionsTier IV

Transmission Information of CaseIH, Steiger 645 Quadtrac

Transmission variants 1

TransmissionPowerDrive
TypeFull power shift
Gears17 forward and 2 reverse

Transmission variants 2

Mechanical Specs of CaseIH, Steiger 645 Quadtrac

  • Cab standard with air-conditioning.
  • Articulated power steering
DriveArticulated crawler
Final drivesPlanetary

Power Information of CaseIH, Steiger 645 Quadtrac

Rear PTOIndependent
Rear PTO Type1000 (1.75)

Hydraulics Specifications of CaseIH, Steiger 645 Quadtrac

TypeClosed center
Type(optional)113 gpm [427.7 lpm]
Type(optional)57 gpm [215.7 lpm]
Valves4 to 8
SCV flow35 gpm [132.5 lpm]
Pump flow42 gpm [159.0 lpm]

Three-Point Hitch of CaseIH, Steiger 645 Quadtrac

Rear TypeIVN
Rear Type(optional)Cat 5
Rear lift (at 24"/610mm)22250 lbs [10092 kg]
DrawbarCat 4

Electrical System of CaseIH, Steiger 645 Quadtrac

Battery volts12
GroundNegative
Batteries3
Batteries(optional)330
Charging systemAlternator
Battery CCA950
Charging amps240

Where it sits

With 636 HP, the CaseIH Steiger 645 Quadtrac sits between Steiger 620 Quadtrac (620 HP) and Steiger 715 Quadtrac (705 HP) in CaseIH's range. Its power puts it in the 99th percentile of 2020s models in our database (1464 machines).

Frequently asked questions

How much horsepower does the CaseIH Steiger 645 Quadtrac have?

The CaseIH Steiger 645 Quadtrac delivers 636 HP.

What years was the CaseIH Steiger 645 Quadtrac produced?

The CaseIH Steiger 645 Quadtrac was produced in 2024+.

What engine does the CaseIH Steiger 645 Quadtrac have?

The CaseIH Steiger 645 Quadtrac is powered by a Turbocharged diesel, 6-cylinder 24-valve engine.

What transmission does the CaseIH Steiger 645 Quadtrac use?

The CaseIH Steiger 645 Quadtrac uses a PowerDrive transmission.

Compare the CaseIH Steiger 645 Quadtrac with another model