The Chelsea 823 Series Power Take-Off, part number 823XJAHW-A3XS or 823XJAHWA3XS, is a heavy-duty 8-bolt mount PTO built for high-torque applications including oil field equipment, logging, pumper cleaner trucks, and mining operations. It uses a lever/mechanical shift and delivers up to 500 lb-ft (678 Nm) intermittent torque, with shaft power rated at 48 HP at 500 RPM and 95 HP at 1,000 RPM. The output shaft is a 1-1/2 in. 10-spline configuration with a 1410 companion flange. Compatible transmissions include Eaton/Fuller, Allison, Volvo/Mack, and select others with an 8-bolt PTO aperture. The 823 Series supports continuous operation with a 30% de-rating. Call us to confirm proper fit for your transmission and application.
The Chelsea 823 Series PTO is suited for demanding work cycles in oil and gas, forestry, and mobile equipment. Direct mount pump outputs allow straightforward hydraulic pump integration. Seven internal speed ratios are available within the 823 Series family, and the 823XJAHW-A3XS specifically uses a lever/mechanical shift with an 8-bolt transmission interface. The wet spline lubrication designation (W) in the part number suffix indicates wet spline output configuration. Refer to Chelsea application pages for transmission-specific torque ratings before installation.
Features
Extra heavy-duty 8-bolt mounting for high-torque applications including oil field, logging, and mining
Lever/mechanical shift type
1-1/2 in. 10-spline output shaft with 1410 series companion flange
Intermittent torque rated up to 500 lb-ft (678 Nm) - check application pages for actual torque ratings
Shaft power: 48 HP at 500 RPM, 95 HP at 1,000 RPM
Compatible with Eaton/Fuller, Allison, Volvo/Mack, and other 8-bolt aperture transmissions
Tech Specs
- Intermittent Torque: 500 lb-ft / 678 Nm (check application pages for actual torque ratings)
- Shift Type: Lever, Mechanical
- Output Power: 56+ HP / 51+ kW
- Transmission Compatibility: Eaton/Fuller, Allison, Volvo/Mack, Other
- Output Shaft Type: 1-1/2 in. - 10T Spline with 1410 Series Companion Flange
- Mounting Type: 8-Bolt
- Shaft Power: 48 HP at 500 RPM / 95 HP at 1,000 RPM (36 kW at 500 RPM / 71 kW at 1,000 RPM)
- Continuous Operation: Yes, with 30% de-rating
Additional Information
The Chelsea 823 Series PTO is suited for demanding work cycles in oil and gas, forestry, and mobile equipment. Direct mount pump outputs allow straightforward hydraulic pump integration. Seven internal speed ratios are available within the 823 Series family, and the 823XJAHW-A3XS specifically uses a lever/mechanical shift with an 8-bolt transmission interface. The wet spline lubrication designation (W) in the part number suffix indicates wet spline output configuration. Refer to Chelsea application pages for transmission-specific torque ratings before installation.
Parts Manual: Chelsea 823 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
