The Chelsea 823XRAHX-A3XU is an 823 Series Power Take-Off built for high-torque applications including oil field, logging, pumper cleaner trucks, and mining equipment. The 823 Series mounts via an 8-bolt aperture, fitting both automatic and manual transmissions from Allison, Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other manufacturers. A mechanical lever shift actuates the unit, and the cast iron housing uses tapered cone bearings on the output shaft for strong load-bearing capability. Output options across the 823 Series include an SAE C pump flange and driveline configurations. Continuous operation is supported with a 30% de-rating. The 823 Series is sold by Pro Gear and Transmission.
Features
8-bolt mounting aperture fits automatic and manual transmissions from Allison, Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and others
Mechanical lever shift actuation
Cast iron housing with tapered cone bearings on the output shaft
SAE C pump flange and driveline output configurations available across the series
Supports continuous operation with 30% de-rating
Designed for oil field, logging, pumper cleaner, and mining applications
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Lever, Mechanical
- Output Type: SAE C Pump Flange, Driveline
- Output Shaft Type: SAE C (1-1/4" - 14T) Pump Spline, 1410 Series Companion Flange, DIN 120, DIN 100
- Transmission Compatibility: Allison, Eaton/Fuller, Volvo/Mack, Daimler/Detroit, Other
- Continuous Operation: Yes, with 30% de-rating
- Intermittent Torque (Series): 401-500 lb-ft range (check application pages for actual torque ratings)
- Output Power (Series): 56+ HP / 51+ kW
- Shaft Power (Series): 48 HP at 500 RPM, 95 HP at 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.
