Description
The Chelsea 823XMAKP-A3XS or 823XMAKPA3XS is a heavy-duty Power Take-Off assembly from the 823 Series, engineered for high-torque applications including oil field equipment, logging machinery, and pumper cleaner trucks. It mounts via an 8-bolt pattern and fits Eaton/Fuller, Volvo/Mack, Allison, and other compatible transmissions. The output shaft is a 1-1/2″ 10-spline with a 1410 series companion flange. Shift type is mechanical lever. Intermittent torque ratings reach up to 500 lb-ft (678 Nm) – confirm actual ratings against application pages for your specific installation. Shaft power is rated at 48 HP at 500 RPM and 95 HP at 1000 RPM. A genuine Chelsea part, available from Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
Chelsea 823 Series extra heavy-duty design rated for high-torque applications: oil field, logging, and mining
8-bolt mounting pattern fits Eaton/Fuller, Volvo/Mack, Allison, and other compatible transmissions
Mechanical lever shift; air shift option also available in the 823 Series
1-1/2″ 10-spline output shaft with 1410 series companion flange standard
Shaft power: 48 HP at 500 RPM, 95 HP at 1000 RPM
Direct mount pump output capability
Tech Specs
- Intermittent Torque: 500 lb-ft / 678 Nm (check application pages for actual ratings)
- Shift Type: Mechanical Lever
- Mounting Type: 8-Bolt
- Output Shaft Type: 1-1/2″ – 10T Spline with 1410 Series Companion Flange
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 48 HP at 500 RPM, 95 HP at 1000 RPM (36 kW at 500 RPM, 71 kW at 1000 RPM)
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Allison, Other 8-Bolt aperture transmissions
- Continuous Operation: Yes, with 30% de-rating
Additional Information
The Chelsea 823 Series is built around a cast iron housing with tapered cone bearings on the output shaft, providing strong load-bearing capability for demanding vocational applications including oil field, logging, forestry, and pumper cleaner trucks. The 823 Series supports seven internal speed ratios and four shift options across the product family. The 1410 series companion flange comes standard on this assembly. Continuous operation is supported with a 30% torque de-rating applied.
