The Chelsea 823 Series Power Take-Off Assembly, part number 823XRAHX-Y5GS or 823XRAHXY5GS, is built for the highest-demand applications in oil field, logging, mining, and pumper-cleaner truck service. It mounts via an 8-bolt aperture and fits Eaton/Fuller, Allison, Volvo/Mack, and other compatible transmissions. The output shaft is a 1-1/2" 10-tooth spline with a 1410 Series companion flange. Shift is lever/mechanical, with air shift also available across the 823 Series. Rated at up to 500 lb-ft intermittent torque (check application pages for actual torque ratings) and shaft power of 95 HP at 1000 RPM, this is the extra heavy-duty unit in the Chelsea PTO lineup. The cast iron housing features tapered cone bearings on the output shaft for greater load-bearing capability. Call us to confirm proper fit for your application.
The 823 Series is Chelsea's flagship extra heavy-duty PTO, designed for high-torque demand equipment including oil field pumps, logging machinery, and mining vehicles. The cast iron housing and tapered cone bearings on the output shaft are key design elements that give this series its load-bearing advantage over lighter-duty units. Seven internal speed ratios are available within the 823 Series, and direct-mount pump outputs are supported. This unit ships as a complete PTO assembly. Reference Parker Chelsea documents including the 823 Series Parts List and 823 Series Sales Literature for detailed configuration and installation guidance.
Features
Extra heavy-duty 823 Series design for oil field, logging, mining, and pumper-cleaner truck applications
8-bolt mounting compatible with Eaton/Fuller, Allison, Volvo/Mack, and other transmissions
Lever/mechanical shift standard; air shift available across the 823 Series
1-1/2" - 10T spline output shaft with 1410 Series companion flange
Shaft power: 48 HP at 500 RPM, 95 HP at 1000 RPM
500 lb-ft intermittent torque rating (check application pages for actual torque ratings)
Tech Specs
- Intermittent Torque: 500 lb-ft / 678 Nm (check application pages for actual torque ratings)
- Shift Type: Lever, Mechanical (air shift available in series)
- Output Power: 56+ HP / 51+ kW
- Transmission Manufacturer Compatibility: Eaton/Fuller, Allison, Volvo/Mack, Other
- Output Shaft Type: 1-1/2" - 10T Spline with 1410 Series Companion Flange
- Mounting Type: 8-Bolt
- Shaft Power: 48 HP (500 RPM) / 95 HP (1000 RPM) | 36 kW (500 RPM) / 71 kW (1000 RPM)
- Continuous Operation: Yes, with 30% de-rating
Additional Information
The 823 Series is Chelsea's flagship extra heavy-duty PTO, designed for high-torque demand equipment including oil field pumps, logging machinery, and mining vehicles. The cast iron housing and tapered cone bearings on the output shaft are key design elements that give this series its load-bearing advantage over lighter-duty units. Seven internal speed ratios are available within the 823 Series, and direct-mount pump outputs are supported. This unit ships as a complete PTO assembly. Reference Parker Chelsea documents including the 823 Series Parts List and 823 Series Sales Literature for detailed configuration and installation guidance.
