Allison S5610H

The Allison S5610H is a purpose-engineered, heavy-duty automatic transmission specifically developed for tracked military and off-road vehicles that require exceptional torque handling, smooth gear transitions, and maximum driveline efficiency in rugged environments. As part of Allison’s specialized “S” Series, the S5610H is optimized for high-mobility tracked platforms, such as armored personnel carriers (APCs), recovery vehicles, and combat engineering vehicles. Featuring a six-speed automatic configuration, a hydrodynamic torque converter with lock-up clutch, and Allison’s electronically controlled shifting system, the S5610H provides a superior balance of power, durability, and control in terrain where traction and mobility are mission-critical. Its compact footprint, horizontal mounting configuration, and integrated cooling and filtration systems make it ideal for low-profile, high-output powertrain designs commonly used in modern tracked defense applications.

Key Advantages of the S5610H Transmission

• Engineered for high-output tracked vehicles with horizontal driveline design
• Delivers excellent power-to-weight ratio and terrain-adaptive shifting
• Compact and rugged construction ideal for space-constrained platforms
• Trusted in military environments for reliability, longevity, and minimal downtime
• Seamless integration with modern vehicle electronics and diagnostics

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Technical Specifications:

• Model: S5610H
• Series: Allison Specialty “S” Series
• Type: Fully automatic planetary transmission
• Application Type: Tracked military/off-road vehicles
• Number of Speeds: 6 forward, 1 reverse
• Torque Converter: Heavy-duty hydrodynamic converter with lock-up clutch
• Mounting Orientation: Horizontal (flat) configuration for underdeck vehicle integration
• Maximum Input Torque: Approx. 1,850–2,000 lb-ft (2,508–2,711 Nm)
• Gross Vehicle Weight (GVW): 60,000–90,000+ lbs (27,200–40,800+ kg), depending on application
• Applications:
  • Tracked armored personnel carriers (APCs)
  • Combat recovery vehicles (CRVs)
  • Engineering and bridging platforms
  • Tactical support tracked vehicles
• Cooling System: Integrated oil-to-water and/or oil-to-air external cooling
• Lubrication System: Full-pressure internal lubrication with advanced filtration
• Oil Specification: Allison TES-295 or TES-668 approved synthetic ATF
• Shift Control: Electronically modulated via Allison Transmission Control Module (TCM)
• Diagnostics: Compatible with Allison DOC® software for real-time fault monitoring and maintenance tracking
• PTO Capability: Optional, based on vehicle integration
• Weight (Dry): Approximately 1,300–1,450 lbs (590–658 kg), depending on cooling and accessory options
• Special Features:
  • Compact, low-profile design for confined hull spaces
  • Electronically adaptive shift scheduling for terrain response
  • Enhanced driveline protection and shift inhibition logic
  • Proven operational reliability in global military service