The Chelsea 823 Series Power Take-Off Assembly, part number 823XJAKP-A4XS or 823XJAKPA4XS, is Chelsea's 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 manual and automatic transmissions from Eaton/Fuller, Volvo/Mack, Allison, and other manufacturers. The lever/mechanical shift design pairs with a 1-1/2 inch, 10-tooth spline output shaft fitted with a 1410 series companion flange. Intermittent torque rating is 500 lb-ft (678 Nm). Shaft power output reaches 95 HP at 1,000 RPM. The cast iron housing uses tapered cone bearings on the output shaft for greater load capacity. Call us to confirm proper fit for your specific transmission and application.
The 823 Series is designed for demanding mobile and stationary applications where sustained high torque is required. Typical uses include oil field pumping, logging equipment, and pumper/cleaner trucks. The series supports direct-mount pump outputs and features a cast iron housing with tapered cone bearings on the output shaft. Seven internal speed ratios are available across the 823 Series. Call Pro Gear and Transmission to verify the correct ratio and configuration for your truck and driven equipment.
Features
Extra heavy-duty 8-bolt mount, fits automatic and manual transmissions
Lever/mechanical shift type
1-1/2 in. - 10T spline output shaft with 1410 series companion flange
Intermittent torque rating: 500 lb-ft (678 Nm)
Shaft power: 48 HP at 500 RPM, 95 HP at 1,000 RPM
Compatible with Eaton/Fuller, Volvo/Mack, Allison, and other 8-bolt transmission applications
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. - 10-tooth spline with 1410 series companion flange
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 48 HP (500 RPM), 95 HP (1,000 RPM) / 36 kW (500 RPM), 71 kW (1,000 RPM)
- Compatible Transmission Manufacturers: Eaton/Fuller, Volvo/Mack, Allison, Other
- Continuous Operation: Yes, with 30% de-rating
Additional Information
The 823 Series is designed for demanding mobile and stationary applications where sustained high torque is required. Typical uses include oil field pumping, logging equipment, and pumper/cleaner trucks. The series supports direct-mount pump outputs and features a cast iron housing with tapered cone bearings on the output shaft. Seven internal speed ratios are available across the 823 Series. Call Pro Gear and Transmission to verify the correct ratio and configuration for your truck and driven equipment.
