Detroit DT12-DA Transmission

The Detroit DT12-DA is a robust and highly advanced automated manual transmission (AMT) designed specifically for heavy-duty trucks. As part of the Detroit Transmission lineup, the DT12-DA combines cutting-edge technology, superior performance, and durability to meet the demanding needs of commercial fleets and long-haul trucking operations. Built with the latest advancements in drivetrain design, the DT12-DA offers superior fuel efficiency, exceptional shifting performance, and unmatched reliability for heavy-duty applications. The transmission is tailored for both performance and comfort, ensuring smooth operation over long distances and under challenging road conditions.

Designed for seamless integration with Detroit’s DD13, DD15, and DD16 engines, the DT12-DA provides optimal powertrain performance. It is well-suited for a wide variety of applications, including long-haul trucking, vocational tasks, and regional freight operations. With its automated shifting, durable construction, and low-maintenance features, the DT12-DA allows fleets to reduce operational costs while providing drivers with a more comfortable and efficient driving experience.

Key Features of the Detroit DT12-DA Transmission

1. Automated Manual Transmission (AMT): The DT12-DA is an automated manual transmission that combines the efficiency of manual gear control with the convenience of automation. This system eliminates the need for a clutch pedal, allowing the transmission to automatically shift between gears based on the truck’s load, speed, and driving conditions. It’s an ideal system for long-haul and regional fleets, improving fuel economy and reducing driver fatigue.
2. Fuel Efficiency: The DT12-DA is engineered to maximize fuel efficiency. Through its intelligent shifting algorithms and automated gear control, the transmission ensures the engine operates at optimal efficiency. The transmission shifts to the best possible gear for fuel economy, reducing fuel consumption over the truck’s lifetime, which is critical for reducing operating costs.
3. Performance and Reliability: The DT12-DA offers excellent performance with smooth and precise gear changes. Its high torque capacity and seamless gear shifting ensure that the truck is always operating at peak efficiency, whether on highways or in more challenging conditions. The robust design of the DT12-DA ensures it can withstand high stresses and heavy workloads, ensuring long-term reliability.
4. Driver Comfort: The DT12-DA’s automated shifting system is designed to reduce driver fatigue, especially on long-haul routes or in stop-and-go traffic. By removing the need for manual gear shifting and the clutch pedal, the transmission offers a more comfortable driving experience. The system shifts automatically in response to road conditions, engine performance, and load, providing smooth, uninterrupted operation.
5. Seamless Integration with Detroit Powertrain: When combined with Detroit’s DD13®, DD15®, or DD16® engines, the DT12-DA transmission delivers exceptional powertrain performance. The integration ensures that the engine, transmission, and other drivetrain components work together for maximum fuel efficiency and optimized vehicle performance.
6. Durability and Low Maintenance: The DT12-DA is built to handle the demands of heavy-duty trucking. It features a long-lasting design with minimal maintenance requirements. With proper care, the transmission is designed for a long service life, providing a reliable and cost-effective solution for fleet owners.
7. Multiple Driving Modes: The DT12-DA comes with various driving modes, including Economy Mode, Performance Mode, and Manual Mode. Economy Mode optimizes fuel efficiency, while Performance Mode enhances power output and acceleration. Manual Mode gives the driver full control over gear selection for specific driving conditions.

Benefits of the Detroit DT12-DA Transmission

• Superior Fuel Economy: The intelligent gear-shifting technology optimizes fuel efficiency, ensuring lower fuel consumption and reduced operating costs.
• Enhanced Driver Experience: With automated shifting and no need for manual clutch engagement, drivers experience less fatigue and a more comfortable driving environment.
• Long-Term Durability: Built with durable materials, the DT12-DA is engineered for high-torque applications, making it ideal for heavy-duty trucks.
• Optimized Performance: The DT12-DA’s high torque capacity and smooth shifting ensure that vehicles perform at their best, even under heavy loads.
• Low Maintenance Costs: The transmission’s efficient performance and long-lasting components help reduce maintenance and repair costs, offering better overall value for fleet owners.
• Seamless Powertrain Integration: Paired with Detroit engines, the DT12-DA transmission offers a fully integrated, high-performing powertrain system, enhancing overall vehicle reliability and performance.

Technical Specifications:

• Transmission Type: Automated Manual Transmission (AMT)
• Number of Gears: 12 forward gears, 2 reverse gears
• Max Gross Vehicle Weight (GVW): Suitable for vehicles up to 80,000 lbs (36,287 kg)
• Torque Capacity: Up to 1,850 lb-ft (2,500 Nm) of torque, ideal for heavy-duty loads
• Gear Ratios:
  • 1st Gear: 16.24:1 (high torque for starting)
  • 12th Gear: 0.74:1 (overdrive gear for efficient highway cruising)
  • Reverse Gear Ratio: 16.24:1
• Clutch Type: Automated clutch system (no manual clutch pedal required)
• Weight: Approximately 380-420 lbs (depending on configuration)
• Shift Control: Fully automated system with modes for Economy, Performance, and Manual shift options
• Lubrication: Requires synthetic transmission fluid for optimal performance and durability
• Cooling: Integrated cooling system that helps maintain optimal transmission temperature
• Driver Modes: Economy Mode, Performance Mode, Manual Mode
• Primary Applications: Long-haul trucking, regional haul, and vocational applications (e.g., construction, freight)
• Service Life: Recommended fluid and filter change intervals of 500,000 miles (800,000 km) or as per Detroit’s service guidelines

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800-621-3914