The Chelsea 823XMAHW-A3XS or 823XMAHWA3XS is an 823 Series Power Take-Off built for high-torque, heavy-duty applications including oil field, logging, pumper cleaner trucks, and mining. It mounts to transmissions with an 8-bolt PTO aperture and is compatible with Allison, Eaton/Fuller, Volvo/Mack, Daimler/Detroit, and other transmission manufacturers. The 823 Series features a cast iron housing, tapered cone bearings on the output shaft, and a mechanical lever shift. Output options for the series include SAE C pump flange and driveline configurations. The 823 Series supports continuous operation with a 30% de-rating and delivers 56+ HP output power. Available from Pro Gear and Transmission.
Features
8-bolt mounting aperture, compatible with automatic and manual transmissions
Mechanical lever shift with air shift also available in the 823 Series
SAE C pump flange and driveline output options
Cast iron housing with tapered cone bearings on the output shaft
Suited for oil field, logging, mining, and pumper cleaner truck applications
Continuous operation supported with 30% de-rating
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Mechanical Lever (Air Shift also available in series)
- 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
- Intermittent Torque: 401-500 lb-ft (series rating; check application pages for actual torque)
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 48 HP at 500 RPM; 95 HP at 1000 RPM
- Continuous Operation: Yes, with 30% de-rating
- Lubricant Options: Pressure Lube, No Pressure Lube, Wet Spline
- Transmission Compatibility: Allison, Eaton/Fuller, Volvo/Mack, Daimler/Detroit, Other
Additional Information
The Chelsea 823 Series is designed for the most demanding heavy-duty PTO applications, including oil and gas, forestry, and mobile equipment. Seven internal speed ratios are available within the series, along with four shift options, making it adaptable across a wide range of equipment configurations. The 823 Series comes standard with a 1410 Series companion flange and features tapered bearings on the output shaft for greater load-bearing capability.Parts Manual: Chelsea 823 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
