The Chelsea 880XMAHX-H3GS or 880XMAHXH3GS is an 8-bolt, lever mechanical shift Power Take-Off from Chelsea's 880 Series, engineered for heavy-duty, high-torque applications including bulk haulers, fire trucks, oil field equipment, aerial units, and large recovery trucks. The output shaft is a 1-1/2"-10T spline with a 1410 companion flange, rated at up to 500 lb-ft intermittent torque. Shaft power output reaches 48 HP at 500 RPM and 95 HP at 1000 RPM. The dual-pump output design allows a hydraulic pump to be mounted on each end of the PTO. Cast iron housing and tapered cone bearings handle demanding load cycles. Compatible with Volvo/Mack, Allison, and Eaton/Fuller transmissions. Call us to confirm proper fit for your application.

The Chelsea 880 Series PTO is suited for demanding on-highway and off-highway work including oil field, aerial, mining, winch, and fire apparatus applications. The 880 Series features constant mesh input gears for both high- and low-speed, high-torque service. Tapered cone bearings deliver strong load-bearing performance across the duty cycle. Compatible transmission families include Eaton Endurant, Volvo/Mack, and Allison, among others. Reference documents include the 880 Series Parts List (HY25-2880-M1_US), the Chelsea Service Manual (HY25-6880-M1/US), and the 880 Series Sales Literature published by Parker Chelsea.
Features
8-Bolt mounting for compatibility with most manual transmissions including Volvo/Mack, Allison, and Eaton/Fuller
Lever mechanical shift with optional air control shift available
1-1/2"-10T spline output shaft with 1410 companion flange
Intermittent torque rating up to 500 lb-ft (678 Nm) - verify actual rating on application pages
Dual-pump output allows a hydraulic pump to be mounted on each end of the unit
Removable shift cover enables simple, accurate backlash adjustment during installation
Tech Specs
- Intermittent Torque: Up to 500 lb-ft (678 Nm) - Check Application Pages for Actual Torque Ratings
- 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 (36 kW) at 500 RPM; 95 HP (71 kW) at 1000 RPM
- Transmission Compatibility: Volvo/Mack, Allison, Eaton/Fuller, Other
- Continuous Operation: Yes, with 30% de-rating
Additional Information

The Chelsea 880 Series PTO is suited for demanding on-highway and off-highway work including oil field, aerial, mining, winch, and fire apparatus applications. The 880 Series features constant mesh input gears for both high- and low-speed, high-torque service. Tapered cone bearings deliver strong load-bearing performance across the duty cycle. Compatible transmission families include Eaton Endurant, Volvo/Mack, and Allison, among others. Reference documents include the 880 Series Parts List (HY25-2880-M1_US), the Chelsea Service Manual (HY25-6880-M1/US), and the 880 Series Sales Literature published by Parker Chelsea.
Parts Manual: Chelsea 880 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.