Allison S9610AR

The Allison S9610AR is the most robust model in the Allison Specialty “S” Series, engineered for maximum performance in ultra-heavy tracked military and combat support vehicles. Designed with a horizontal configuration, the S9610AR offers seamless integration into low-clearance armored hulls and delivers exceptional torque handling, braking control, and operational reliability under the most demanding battlefield and terrain conditions.

The “A” designation denotes its fully automatic planetary gear design with a high-capacity torque converter and lock-up clutch, while the “R” indicates the inclusion of a powerful integrated hydraulic retarder. This makes the S9610AR ideal for long descents, frequent stops, and high gross vehicle weights, reducing wear on service brakes and enhancing vehicle control in extreme environments.

Built for GVWRs exceeding 160,000 lbs, the S9610AR supports tracked systems such as combat bridge layers, mobile artillery units, recovery vehicles, and heavy armored logistics platforms. It features advanced electronic shift controls, real-time diagnostics, and battle-proven modular construction for easy serviceability in the field.

Key Benefits of the S9610AR Transmission

• Handles extreme torque and GVW for the heaviest tracked combat platforms
• Built-in retarder provides supplemental braking and heat dissipation for long descents
• Horizontal configuration supports compact installation in armored vehicle hulls
• Adaptive shift control and real-time diagnostics enhance mission readiness
• Rugged, field-serviceable design proven in global military operations
• Reduces brake wear and improves safety during heavy-duty tactical missions

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Technical Specifications:

• Model: S9610AR
• Series: Allison Specialty “S” Series
• Transmission Type: Fully automatic planetary transmission with hydraulic retarder
• Mounting Orientation: Horizontal (low-profile configuration)
• Speeds: 6 forward, 1 reverse
• Torque Converter: Heavy-duty hydrodynamic unit with lock-up clutch
• Integrated Retarder: Yes – hydraulic, for auxiliary braking and thermal load control
• Maximum Input Torque: Up to 2,800 lb-ft (3,796 Nm)
• Gross Vehicle Weight Rating (GVWR): 130,000–165,000+ lbs (59,000–74,800+ kg), application dependent
• Primary Applications:
  • Combat engineering and bridge-laying vehicles
  • Mobile artillery and self-propelled gun platforms
  • Heavy tracked recovery and support systems
  • Tactical tracked logistics carriers
• Cooling System:
  • Dual-circuit cooling required for transmission and retarder
  • Compatible with oil-to-air or oil-to-water heat exchangers
• Lubrication System:
  • Pressure-fed, full-flow with multi-stage filtration
• Oil Specification: TES-295 or TES-668 approved synthetic transmission fluid
• Electronic Controls:
  • Integrated Allison TCM (Transmission Control Module)
  • Adaptive shift scheduling for load, speed, and terrain optimization
  • Retarder coordination with service brakes and engine control
• Diagnostics Compatibility:
  • Allison DOC® compatible for live diagnostics and system monitoring
  • Tracks fluid condition, clutch wear, retarder activity, and fault codes
• PTO Capability: Optional, based on vehicle configuration
• Dry Weight: Approx. 2,100–2,300 lbs (953–1,043 kg), depending on final setup
• Construction Features:
  • Military-spec high-strength casing and internal components
  • Retarder-integrated output for enhanced descent and stop control
  • Sealed electronics for EMI protection and harsh environment durability
  • Modular design for rapid maintenance and in-field servicing