Allison S9810A

The Allison S9810A is a heavy-duty, fully automatic transmission designed for the most demanding tracked military and off-highway applications. As a member of the elite Allison “S” Series, the S9810A builds on the proven architecture of the S9610A, delivering higher torque capacity, increased durability, and a refined horizontal configuration ideal for armored vehicle platforms with extreme GVWR requirements.

With a 6-speed planetary gear set and a single reverse gear, the S9810A provides precise gear control, smooth shifting, and continuous power delivery under full-load conditions. Its hydrodynamic torque converter with lock-up clutch ensures efficient torque multiplication during acceleration and direct-drive performance at cruise speeds, minimizing driveline stress and maximizing fuel economy.

Engineered for gross vehicle weights in excess of 170,000 lbs, the S9810A is ideal for combat engineering vehicles, mobile artillery systems, heavy tracked logistics carriers, and other high-mass tracked systems. The “A” designation indicates a standard model without integrated retarder or mission-specific features, making it a robust and adaptable foundation for military and commercial tracked vehicle programs.

Key Benefits of the S9810A Transmission

• Delivers maximum torque and endurance for ultra-heavy tracked vehicle platforms
• Horizontal mount enables flexible integration in compact or low-clearance hull designs
• Torque converter with lock-up ensures efficient performance across speeds
• Electronic control system provides adaptive shift strategies and diagnostic support
• Rugged design proven in global military environments and heavy-duty field operations
• Built for mission readiness with easy maintenance and upgrade potential

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Technical Specifications:

• Model: S9810A
• Series: Allison Specialty “S” Series
• Transmission Type: Fully automatic planetary transmission
• Mounting Orientation: Horizontal (for low-profile vehicle hulls)
• Speeds: 6 forward, 1 reverse
• Torque Converter: Heavy-duty hydrodynamic with lock-up clutch
• Maximum Input Torque: Up to 3,000 lb-ft (4,068 Nm)
• Gross Vehicle Weight Rating (GVWR): 160,000–180,000+ lbs (72,500–81,600+ kg), application dependent
• Primary Applications:
  • Heavy tracked combat support vehicles
  • Armored bridge layers and mobile defense platforms
  • Tactical military recovery systems
  • Off-highway tracked transport or logistics carriers
• Retarder: Not included (available in “AR” variant)
• Cooling System:
  • External high-capacity oil cooling system required
  • Supports oil-to-air or oil-to-water exchanger integration
• Lubrication System:
  • Full-pressure lubrication with high-efficiency filtration
• Oil Specification: Allison TES-295 or TES-668 synthetic ATF
• Electronic Controls:
  • Allison Transmission Control Module (TCM) with programmable shift logic
  • Terrain/load-responsive adaptive controls
  • Integrated fault protection and temperature regulation
• Diagnostics Compatibility:
  • Compatible with Allison DOC® software for system health monitoring
  • Supports clutch wear tracking, oil condition, and shift data logging
• PTO Capability: Optional, dependent on vehicle application
• Dry Weight: Approx. 2,300–2,500 lbs (1,043–1,134 kg), depending on configuration
• Construction Features:
  • Military-grade housing and high-strength internals
  • Modular architecture for rapid maintenance and component replacement
  • Sealed electronic interfaces for moisture, vibration, and EMI resistance