The Chelsea 823 Series Power Take-Off Assembly, part number 823XJAHX-A5XS or 823XJAHXA5XS, is an extra heavy-duty PTO built for high-torque applications including oil field, logging, pumper/cleaner trucks, and mining equipment. It mounts via an 8-bolt aperture and fits automatic and manual transmissions from Eaton/Fuller, Allison, Volvo/Mack, and other manufacturers. The output shaft is a 1-1/2 inch 10-spline configuration with a 1410 Series companion flange. Lever/mechanical shift is standard on this unit. The 823 Series delivers 48 HP at 500 RPM and 95 HP at 1000 RPM. Intermittent torque rating is 500 lb-ft (678 Nm) - verify actual torque against the application pages for your specific installation. Continuous operation is supported with a 30% de-rating. A cast iron housing and tapered cone bearings on the output shaft contribute to its load-bearing capability. Call us to confirm proper fit for your application.
The Chelsea 823 Series is engineered for demanding markets including oil and gas, mobile equipment, and forestry. Typical applications include oil field equipment, logging machinery, pumper/cleaner trucks, and mining equipment. The cast iron housing and tapered cone bearings on the output shaft provide the structural integrity needed for sustained high-torque operation. The 823 Series supports direct mount pump outputs and is compatible with SAE C pump flange configurations within the series. Seven internal speed ratios are available across the 823 Series platform. For installation guidance, refer to the Parker Chelsea 823 Series Parts List, 823 Series Sales Literature, and the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual available from Parker Chelsea.
Features
Extra heavy-duty 823 Series design rated for 500 lb-ft (678 Nm) intermittent torque (check application pages for actual ratings)
8-bolt mounting aperture fits Eaton/Fuller, Allison, Volvo/Mack, and other transmission manufacturers
Lever/mechanical shift; air shift also available in the 823 Series
Output shaft: 1-1/2 inch 10-spline with 1410 Series companion flange
Shaft power: 48 HP (36 kW) at 500 RPM; 95 HP (71 kW) at 1000 RPM
Continuous operation supported with 30% de-rating; direct mount pump output 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 in. - 10T Spline with 1410 Series Companion Flange
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 48 HP (36 kW) at 500 RPM; 95 HP (71 kW) at 1000 RPM
- Transmission Compatibility: Eaton/Fuller, Allison, Volvo/Mack, Other
- Continuous Operation: Yes, with 30% de-rating
Additional Information
The Chelsea 823 Series is engineered for demanding markets including oil and gas, mobile equipment, and forestry. Typical applications include oil field equipment, logging machinery, pumper/cleaner trucks, and mining equipment. The cast iron housing and tapered cone bearings on the output shaft provide the structural integrity needed for sustained high-torque operation. The 823 Series supports direct mount pump outputs and is compatible with SAE C pump flange configurations within the series. Seven internal speed ratios are available across the 823 Series platform. For installation guidance, refer to the Parker Chelsea 823 Series Parts List, 823 Series Sales Literature, and the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual available from Parker Chelsea.
