The Chelsea 823XDAHX-A3XS or 823XDAHXA3XS is a heavy-duty power take-off assembly from the Chelsea 823 Series, built for high-torque applications including oil field service, logging, and pumper-cleaner trucks. It mounts via an 8-bolt aperture, making it compatible with Allison, Eaton/Fuller, and Volvo/Mack transmissions. The lever/mechanical shift operates through a cast iron housing with tapered cone bearings on the output shaft for strong load-bearing performance. Output is delivered through a 1-1/2 in. 10-tooth spline with a 1410 series companion flange. Shaft power reaches 95 HP at 1000 RPM and 48 HP at 500 RPM. The 823 Series is rated for intermittent torque up to 500 lb-ft (678 Nm); verify actual torque limits on the Chelsea application pages for this configuration. Available from Pro Gear and Transmission. Call us to confirm proper fit for your truck and transmission.
Features
8-bolt mounting fits Allison, Eaton/Fuller, and Volvo/Mack transmissions
Lever/mechanical shift with cast iron housing
1-1/2 in. 10-tooth spline output with 1410 series companion flange
Shaft power: 48 HP at 500 RPM, 95 HP at 1000 RPM
Intermittent torque rating up to 500 lb-ft / 678 Nm (check application pages for actual torque limits)
Designed for oil field, logging, mining, and pumper-cleaner truck applications
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 Manufacturer: Allison, Eaton/Fuller, Volvo/Mack, Other
- Output Shaft Type: 1-1/2 in. 10-Tooth 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)
Additional Information
Parts Manual: Chelsea 823 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
