Diesel locomotive ET44AC

freight

Overview
Built on a proven locomotive platform to provide reliable medium-speed diesel traction and predictable lifecycle costs.

Summary
The Evolution Series Tier 4 (ET44AC) updates the Evolution Tier 2/3 platform. Its Tier 4 engine meets U.S. EPA Tier 4 emissions standards without after-treatment, reducing local infrastructure requirements and operating costs.

Key Features / Highlights

• EPA Tier 4 compliance without after-treatment
• AC individual-axle traction control
• Proven Evolution Series platform with extensive global service history
• Advanced cooling system

Product Details — ET44AC specifications at a glance
Model ET44AC Specifications — general:
# of Powered Axles: 6
Weight [Max]: 432,000 lbs. (196 t)
Weight/Axle: 72 klbs (33.6 t)
Track Gauge: 56.5" (1435 mm)

Model ET44AC Specifications — performance & compliance:
Clearance: AAR S-2056 Plate M
Emissions USA: EPA Tier 4
Horsepower (Gross): 4,500 HP (3,356 kW)
Horsepower (Tractive): 4,365 HP (3,255 kW)

Model ET44AC Specifications — tractive effort & fuel:
Starting TE (lbf / kN): 200,000 lbf (890 kN)
CTE (lbf / kN): 166,000 lbf (739 kN)
Max. Dyn. Braking: 98,000 lbf (436 kN)
Total Fuel: 5,300 Gal (20,063 L)

Model ET44AC Specifications — additional:
Useable Fuel: 4,800 Gal (18,170 L)
Engine Model: GEVO12-LDD
Countries Used: Canada | United States

Product narrative / positioning
The Evolution Series provides 4,500 GHP medium-speed diesel performance while meeting Tier 4 emissions without aftertreatment. The ET44AC is configured for high hauling capability and sustained performance under varying track conditions.

Technical specifications

• Model: ET44AC
• Engine Model: GEVO12-LDD
• Gross Horsepower: 4,500 HP (3,356 kW)
• Tractive Horsepower: 4,365 HP (3,255 kW)
• Number of Powered Axles: 6
• Maximum Vehicle Weight: 432,000 lbs. (196 t)
• Weight per Axle: 72 klbs (33.6 t)
• Track Gauge: 56.5" (1435 mm)
• Clearance: AAR S-2056 Plate M
• Emissions (USA): EPA Tier 4 (meets Tier 4 without after-treatment)
• Starting Tractive Effort: 200,000 lbf (890 kN)
• Continuous Tractive Effort (CTE): 166,000 lbf (739 kN)
• Maximum Dynamic Braking: 98,000 lbf (436 kN)
• Total Fuel Capacity: 5,300 Gal (20,063 L)
• Useable Fuel Capacity: 4,800 Gal (18,170 L)
• Intended / documented use regions: Canada, United States