Allison S9610M

The Allison S9610M transmission is a high-capacity, fully automatic transmission designed for extreme-duty military tracked vehicles that require both brute torque capability and mission-critical reliability. As a part of the Allison “S” Specialty Series, the S9610M is purpose-built for the harshest terrains and heaviest payloads—supporting applications where vehicle performance and battlefield dependability are non-negotiable.

The “M” designation refers to its military-optimized configuration, built with rugged components, sealed electronics, and modular serviceability. With its horizontal mounting layout, the S9610M offers excellent packaging flexibility in low-profile armored vehicles. It features a 6-speed planetary gear set, hydraulic torque converter with lock-up clutch, and electronically managed shift logic to ensure smooth, efficient, and consistent drivetrain performance.

Ideal for armored bridge-laying vehicles, heavy mobile artillery platforms, tracked recovery units, and combat engineering vehicles, the S9610M is designed for high-GVWR, extended-duty cycles, and uncompromising durability under extreme load and environmental stress.

Key Benefits of the S9610M Transmission

• Built for the heaviest tracked vehicles in the most demanding operational environments
• Horizontal design enables low-profile vehicle integration
• High input torque capacity with smooth automatic shifting
• Modular construction reduces downtime and simplifies field maintenance
• Adaptive electronic control ensures optimal performance across mission profiles
• Trusted in military fleets worldwide for reliability and operational endurance

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Technical Specifications:

• Model: S9610M
• Series: Allison Specialty “S” Series
• Transmission Type: Fully automatic planetary transmission
• Mounting Orientation: Horizontal (optimized for compact armored vehicle hulls)
• Speeds: 6 forward, 1 reverse
• Torque Converter: Heavy-duty hydrodynamic converter with lock-up clutch
• 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), vehicle dependent
• Primary Applications:
  • Tracked combat engineering and bridging vehicles
  • Heavy mobile artillery and support platforms
  • Armored recovery and logistics tracked vehicles
  • Tactical heavy-load transport systems
• Retarder: Not included (available in S9610MR and S9610AR variants)
• Cooling System:
  • High-capacity cooling required
  • Compatible with external oil-to-air or oil-to-water coolers
• Lubrication System:
  • Pressure-fed internal system with multi-stage filtration
• Oil Specification: TES-295 or TES-668 synthetic ATF
• Electronic Controls:
  • Allison Transmission Control Module (TCM)
  • Terrain/load-responsive shift logic
  • Programmable with battlefield-grade diagnostics
• Diagnostics Compatibility:
  • Fully compatible with Allison DOC® software
  • Real-time monitoring of clutch health, oil condition, shift timing, and fault codes
• PTO Capability: Optional and configuration-dependent
• Dry Weight: Approx. 2,000–2,200 lbs (907–998 kg)
• Durability Features:
  • Reinforced military-spec housing and gearsets
  • Modular service design for field-level replacement and overhaul
  • Electronics sealed for protection against vibration, moisture, and EMI
  • Proven in high-temperature, off-road, and full-load operational conditions