Description
The Chelsea 823 Series Power Take-Off Assembly, part number 823XGAKP-M4GS or 823XGAKPM4GS, is an extra heavy-duty PTO built for high-demand applications including oil field equipment, logging, pumper/cleaner trucks, and mining operations. It mounts via an 8-bolt pattern and fits Eaton/Fuller, Allison, Volvo/Mack, and other transmission manufacturers. Shift is mechanical lever. The output shaft is a 1-1/2 inch 10-tooth spline with a 1410 series companion flange. Intermittent torque rating reaches 500 lb-ft (678 Nm) – verify your application on the Chelsea application pages. Shaft power is 48 HP at 500 RPM and 95 HP at 1000 RPM. The cast iron housing uses tapered cone bearings on the output shaft for greater load-bearing capability. Available from Pro Gear and Transmission – call us to confirm proper fit for your application.
Features
Extra heavy-duty 823 Series design rated for high-torque applications: oil field, logging, mining, pumper/cleaner trucks
8-bolt mounting pattern fits Eaton/Fuller, Allison, Volvo/Mack, and other transmission manufacturers
Mechanical lever shift; air shift also available in the 823 Series
1-1/2 inch 10-tooth spline output with 1410 series companion flange
Shaft power: 48 HP at 500 RPM, 95 HP at 1000 RPM (36 kW at 500 RPM, 71 kW at 1000 RPM)
Cast iron housing with tapered cone bearings on the output shaft for high load-bearing capability
Tech Specs
- Intermittent Torque: 500 lb-ft / 678 Nm (Check Application Pages for Actual Torque Ratings)
- Shift Type: Lever, Mechanical
- Mounting Type: 8-Bolt
- Output Shaft Type: 1-1/2 inch – 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, Allison, Volvo/Mack, Other
- Continuous Operation: Yes, with 30% de-rating
Additional Information
Parts Manual: Chelsea 823 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.







