The Chelsea 880GJAHX-A3GS or 880GJAHXA3GS is an 880 Series Power Take-Off assembly built for heavy-duty, high-torque applications. It mounts via an 8-bolt aperture and delivers up to 500 lb-ft (678 Nm) intermittent torque, rated for continuous operation with a 30% de-rating. The output shaft is a 1-1/2"-10T spline fitted with a 1410 Series companion flange. Shaft power reaches 48 HP at 500 RPM and 95 HP at 1000 RPM. Shifting is lever mechanical, with a removable shift cover that simplifies backlash adjustment during installation. Constant mesh input gears and tapered cone bearings handle the load demands of bulk haulers, fire trucks, winch rigs, oil field equipment, and large recovery trucks. Compatible transmissions include Eaton/Fuller, Allison, and Volvo/Mack. Call us to confirm proper fit for your specific transmission and application.

The 880 Series is Chelsea's heavy-duty 8-bolt PTO line, suited for oil and gas, aerial, mining, on-highway, and other mobile applications. Typical installations include bulk haulers, fire trucks, winch systems, aerial equipment, and large truck recovery rigs. The 880 Series is also available for the Eaton Endurant transmission. Constant mesh input gears keep engagement smooth across the operating speed range. The removable shift cover is a design detail that makes backlash adjustment faster and more accurate in the field. For transmission-specific mounting stud kits, refer to Chelsea publication HY25-2002-M1_US. Full service and parts information is covered in the 880 Series Owner's Manual and Service Manual HY25-6880-M1/US.
Features
8-Bolt mounting fits most manual transmissions including Eaton/Fuller, Allison, and Volvo/Mack
1-1/2"-10T spline output shaft with 1410 Series companion flange
500 lb-ft (678 Nm) intermittent torque; rated for continuous operation with 30% de-rating
95 HP shaft power at 1000 RPM; 48 HP at 500 RPM
Lever mechanical shift with removable shift cover for precise backlash adjustment
Dual-pump output allows mounting a hydraulic pump on each end of the PTO
Rugged cast iron housing; tapered cone bearings for load capacity
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 Series Companion Flange
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 48 HP (36 kW) at 500 RPM; 95 HP (71 kW) at 1000 RPM
- Transmission Compatibility: Eaton/Fuller, Allison, Volvo/Mack, Other
- Lubricant: X = No Pressure Lube
Additional Information

The 880 Series is Chelsea's heavy-duty 8-bolt PTO line, suited for oil and gas, aerial, mining, on-highway, and other mobile applications. Typical installations include bulk haulers, fire trucks, winch systems, aerial equipment, and large truck recovery rigs. The 880 Series is also available for the Eaton Endurant transmission. Constant mesh input gears keep engagement smooth across the operating speed range. The removable shift cover is a design detail that makes backlash adjustment faster and more accurate in the field. For transmission-specific mounting stud kits, refer to Chelsea publication HY25-2002-M1_US. Full service and parts information is covered in the 880 Series Owner's Manual and Service Manual HY25-6880-M1/US.