Allison M6610AR Transmission

Allison M6610AR Transmission – Remanufactured

The Allison M6610AR is a military-grade, heavy-duty automatic transmission equipped with an integrated hydraulic retarder—designed to meet the highest demands in powertrain performance, braking control, and reliability. As a variant of the Allison 6000 Series, the M6610AR is engineered for use in extremely heavy, high-output vehicles operating in rugged off-road, military, or industrial environments. With six forward speeds, one reverse, and a lock-up torque converter, this transmission delivers efficient power transfer, exceptional torque handling, and smooth, electronically managed shifts under intense load conditions.

Key Benefits of the M6610AR

• Heavy-duty braking assistance reduces brake wear and increases vehicle control
• Reliable performance under extreme heat, load, and terrain conditions
• Fully automatic, electronically managed shifting improves driver efficiency
• Trusted in military and specialty vehicles worldwide for logistics and mobility
• Extended service life and reduced total cost of ownership in fleet applications

Technical Specifications

• Model: M6610AR
• Series: Allison 6000 Series
• Type: Fully automatic planetary transmission with integrated hydraulic retarder
• Number of Speeds: 6 forward, 1 reverse
• Retarder: Integral hydraulic retarder for sustained auxiliary braking
• Torque Converter: Lock-up type for maximum power efficiency
• Maximum Input Torque: Up to 1,850 lb-ft (2,500 Nm)
• GVWR: Rated for 100,000+ lbs (45,359+ kg)
• Applications: Military tank transporters, tactical vehicles, off-road and construction equipment, mining and heavy haul
• Input Speed: Up to 3,300 RPM
• Cooling: High-capacity external oil cooler required
• Lubrication: Pressure-fed with integrated filtration
• Oil Spec: Allison TES-295 or TES-668
• PTO Capability: Side and/or rear
• Diagnostics: Allison DOC® compatible
• Mounting Interface: SAE #1 bell housing
• Weight: 1,350–1,450 lbs (612–658 kg)
• Retarder Braking Torque: 1,800–2,400 lb-ft