The Chelsea 880XMDAX-A3SS or 880XMDAXA3SS is an 8-bolt Power Take-Off Assembly from the Chelsea 880 Series, engineered for heavy-duty, high-torque applications. It features a lever mechanical shift and a 1-1/2"-10T spline output shaft with a 1410 companion flange. Intermittent torque rating reaches 500 lb-ft (678 Nm), and shaft power output is 48 HP at 500 RPM and 95 HP at 1000 RPM. Continuous operation is supported with a 30% de-rating. The cast iron housing uses tapered cone bearings, and the removable shift cover allows straightforward backlash adjustment. Compatible with Volvo/Mack, Allison, and Eaton/Fuller transmissions. A genuine Chelsea part, available from Pro Gear and Transmission. Call us to confirm proper fit for your application.
The Chelsea 880 Series is purpose-built for high-demand vocational work including bulk hauling, fire truck equipment, oil field operations, aerial work, winch systems, and large truck recovery. Constant mesh input gears support both high- and low-speed operation. Tapered cone bearings provide strong load-bearing capacity under continuous-duty cycles. The removable shift cover makes backlash adjustment faster and more precise on installation. The dual-pump output configuration allows a hydraulic pump to be mounted at each end of the PTO, supporting more complex hydraulic circuits from a single drive unit.
Features
8-bolt mounting pattern fits most manual transmissions including Volvo/Mack, Allison, and Eaton/Fuller
Lever mechanical shift with optional air control shift availability within the 880 Series
1-1/2"-10T spline output shaft with 1410 companion flange
Intermittent torque rating: 500 lb-ft (678 Nm); check application pages for actual torque ratings
Shaft power: 48 HP (500 RPM) and 95 HP (1000 RPM)
Dual-pump output allows mounting a hydraulic pump on each end of the PTO
Tech Specs
- INTERMITTENT TORQUE: 500 lb-ft (678 Nm) - Check Application Pages for Actual Torque Ratings
- CONTINUOUS OPERATION: Yes, with 30% de-rating
- SHIFT TYPE: Lever Mechanical
- MOUNTING TYPE: 8-Bolt
- OUTPUT SHAFT TYPE: 1-1/2" - 10T Spline with 1410 Companion Flange
- OUTPUT POWER: 56+ HP (51+ kW)
- SHAFT POWER: 48 HP at 500 RPM / 95 HP at 1000 RPM (36 kW at 500 RPM / 71 kW at 1000 RPM)
- COMPATIBLE TRANSMISSIONS: Volvo/Mack, Allison, Eaton/Fuller, Other
Additional Information
The Chelsea 880 Series is purpose-built for high-demand vocational work including bulk hauling, fire truck equipment, oil field operations, aerial work, winch systems, and large truck recovery. Constant mesh input gears support both high- and low-speed operation. Tapered cone bearings provide strong load-bearing capacity under continuous-duty cycles. The removable shift cover makes backlash adjustment faster and more precise on installation. The dual-pump output configuration allows a hydraulic pump to be mounted at each end of the PTO, supporting more complex hydraulic circuits from a single drive unit.
