Detroit DT12-OA Transmission

The Detroit DT12-OA is a cutting-edge automated manual transmission (AMT) engineered for heavy-duty trucks. Known for its smooth operation, fuel efficiency, and high-performance capabilities, the DT12-OA is part of the Detroit Transmission lineup, a brand recognized for producing durable and reliable drivetrain components. Designed to handle the rigorous demands of modern commercial vehicles, the DT12-OA provides exceptional power delivery, efficient shifting, and long-lasting durability, making it a top choice for fleets that require both performance and low maintenance.

This transmission is ideal for long-haul trucking, construction, and other industries where truck performance, fuel economy, and driver comfort are crucial. Featuring the latest advancements in drivetrain technology, the DT12-OA offers enhanced reliability, reduced wear, and an optimized powertrain system that helps improve both operational efficiency and overall vehicle lifespan.

Key Features of the Detroit DT12-OA Transmission

1. Automated Manual Transmission (AMT) System:
   The DT12-OA is an automated manual transmission, combining the benefits of a manual transmission with the convenience of automation. It automatically shifts through the gears based on vehicle load, speed, and driving conditions, eliminating the need for clutch pedals and manual gear shifting while providing precise and efficient gear selection.
2. High Torque Capacity:
   The DT12-OA is engineered to handle high torque output, making it ideal for heavy-duty trucks that require a transmission capable of withstanding the stress of hauling heavy loads over long distances.
3. Fuel Efficiency:
   The DT12-OA offers significant improvements in fuel efficiency due to its smooth shifting capabilities and advanced gear control system. By automatically selecting the optimal gear for different driving conditions, the transmission helps reduce fuel consumption and lower overall operating costs.
4. Advanced Control System:
   The transmission uses an intelligent control system that continuously monitors driving conditions and adjusts shift points to optimize engine performance, reduce engine load, and ensure smoother operation. This contributes to both the efficiency and longevity of the transmission and the overall vehicle.
5. Enhanced Driver Comfort:
   With its automated shifting system, the DT12-OA reduces the need for constant gear changes, providing a smoother and more comfortable driving experience. Drivers benefit from less fatigue, making long-haul trips and frequent stop-and-go driving easier and more manageable.
6. Durability and Longevity:
   Detroit has designed the DT12-OA with robust materials and advanced engineering to ensure long-lasting durability under heavy usage. The transmission is built to withstand the wear and tear associated with demanding commercial applications, providing reliable performance throughout its service life.
7. Seamless Integration with Detroit Powertrain:
   The DT12-OA is optimized to work in tandem with other Detroit Powertrain components, including the Detroit DD15® engine, ensuring that the entire powertrain operates in harmony for maximum efficiency and performance.

Benefits of the Detroit DT12-OA Transmission

• Enhanced Fuel Economy: The advanced shift technology and automatic gear selection help reduce fuel consumption, making the DT12-OA an excellent choice for cost-conscious fleet owners.
• Improved Driver Productivity and Comfort: The automated shifting system reduces driver fatigue, allowing them to focus on the road without worrying about manual gear changes.
• Optimized for Heavy-Duty Use: With a torque capacity of up to 1,850 lb-ft, the DT12-OA is built to handle the most demanding commercial applications.
• Reduced Maintenance Costs: The intelligent transmission control system optimizes performance, reducing wear on components and extending the transmission’s life.
• Seamless Integration: The DT12-OA is designed to work in perfect harmony with other Detroit Powertrain components, ensuring smooth and reliable vehicle operation.

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, making it ideal for heavy-duty applications
• Gear Ratios:
  • 1st Gear: 16.24:1
  • 12th Gear: 0.74:1 (overdrive ratio for highway cruising)
  • Reverse Gear Ratio: 16.24:1
• Clutch Type: Automated clutch system, eliminating the need for a traditional clutch pedal
• Weight: Approximately 380-420 lbs (varies by configuration and application)
• Shift Control: Fully automated, with options for manual mode and economy mode for fuel-efficient driving
• Lubrication: Requires synthetic transmission fluid for optimal performance and durability
• Cooling: Integrated cooling system with a heat exchanger to maintain optimal operating temperature
• Primary Applications: Long-haul trucking, regional haul, and vocational applications such as construction and freight
• Driver Modes: Includes multiple driving modes, including Economy, Performance, and Manual Mode for customizable shifting preferences
• Service Life: Designed for an extended service life, with recommended fluid and filter changes every 500,000 miles (800,000 km) or as per manufacturer guidelines

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800-621-3914