Allison S9610MR

The Allison S9610MR is the pinnacle of heavy-duty tracked vehicle transmission design, combining the extreme load-handling capabilities of the S9610 Series with enhanced military-grade performance and an integrated hydraulic retarder for superior braking and descent control. Purpose-built for ultra-heavy military engineering vehicles, recovery systems, and combat platforms, the S9610MR is a horizontal-mount, fully automatic 6-speed transmission engineered to deliver continuous power and thermal stability under the harshest battlefield conditions.

The “M” variant signifies military-specific design adaptations such as ruggedized housings, sealed electronics, modular serviceability, and EMI protection. The “R” denotes a high-capacity hydraulic retarder, which provides controlled deceleration, reduced wear on service brakes, and thermal load mitigation on long or steep descents—critical for vehicle safety during off-road recovery, load transport, or combat support missions.

Featuring adaptive electronic controls, real-time diagnostics, and a modular architecture, the S9610MR is trusted for its proven durability, low maintenance footprint, and unmatched torque-handling capabilities in extreme terrain and high-GVWR environments.

Key Benefits of the S9610MR Transmission

• Combines maximum torque transmission with retarder-enhanced braking control
• Engineered for the heaviest tracked vehicles and most demanding tactical missions
• Horizontal mount suits compact or low-profile armored vehicle designs
• Integrated diagnostics and adaptive controls optimize mission reliability
• Retarder reduces brake wear and improves control on descents and terrain transitions
• Proven in extreme load, temperature, and combat-operating conditions globally

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Technical Specifications:

• Model: S9610MR
• Series: Allison Specialty “S” Series
• Transmission Type: Fully automatic planetary transmission with hydraulic retarder
• Mounting Orientation: Horizontal (ideal for low-profile armored vehicle platforms)
• Speeds: 6 forward, 1 reverse
• Torque Converter: Heavy-duty hydrodynamic converter with lock-up clutch
• Integrated Retarder: Yes – high-capacity hydraulic type
• Maximum Input Torque: Up to 2,800 lb-ft (3,796 Nm)
• Gross Vehicle Weight Rating (GVWR): 130,000–170,000+ lbs (59,000–77,000+ kg), vehicle dependent
• Primary Applications:
  • Combat bridge-laying and recovery tracked vehicles
  • Self-propelled artillery and mobile defense platforms
  • Armored logistics and heavy engineering systems
  • Tactical transport and load-handling tracked vehicles
• Cooling System:
  • Dual-circuit cooling required for both transmission and retarder
  • Compatible with oil-to-air or oil-to-water external heat exchangers
• Lubrication System:
  • Full-pressure circulation with multi-stage filtration
• Oil Specification: Allison TES-295 or TES-668 synthetic transmission fluid
• Electronic Controls:
  • Integrated Allison Transmission Control Module (TCM)
  • Adaptive shift logic optimized for terrain, load, and engine conditions
  • Retarder control integration with vehicle braking systems
• Diagnostics & Monitoring:
  • Compatible with Allison DOC® for real-time status and fault analysis
  • Monitors clutch engagement, retarder usage, fluid health, and temperature
• PTO Capability: Optional and configurable
• Dry Weight: Approx. 2,200–2,400 lbs (998–1,089 kg) depending on configuration
• Construction Features:
  • Military-spec cast housing with high-strength internal components
  • Retarder-integrated output section for seamless auxiliary braking
  • Sealed and hardened electronics for battlefield reliability
  • Modular design for rapid servicing and minimal downtime