The Chelsea 880 Series Power Take-Off Assembly, part number 880XMDAX-A5GS or 880XMDAXA5GS, is an 8-bolt, lever mechanical-shift PTO built for heavy-duty, high-torque service. The output shaft is a 1-1/2"-10T spline with a 1410 companion flange, rated for intermittent torque up to 500 lb-ft (678 Nm) - check application pages for actual torque ratings for your installation. Shaft power output reaches 48 HP at 500 RPM and 95 HP at 1,000 RPM. The removable shift cover simplifies backlash adjustment, and the dual-pump output design allows a pump to be mounted on each end of the unit. Compatible with Volvo/Mack, Allison, Eaton/Fuller, and other manual transmissions with an 8-bolt aperture. A genuine Chelsea part available from Pro Gear and Transmission - call us to confirm proper fit for your application.
The Chelsea 880 Series is designed for demanding on-highway and off-highway applications including bulk haulers, fire trucks, oil field equipment, aerial units, winch systems, and large truck recovery vehicles. The 880 Series features constant mesh input gears suited for both high-speed and high-torque service. Tapered cone bearings provide load-bearing durability across these demanding duty cycles. The 880 Series PTO also supports continuous operation with a 30% de-rating applied. For installation and parts references, Parker publishes the 880 Series Owner's Manual (HY25-2880-M1_US parts list) and the Chelsea Service Manual (HY25-6880-M1/US).
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 in the 880 Series
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
Shaft power: 48 HP at 500 RPM, 95 HP at 1,000 RPM
Dual-pump output allows a hydraulic pump to be mounted on each end of the PTO
Cast iron housing with removable shift cover for straightforward backlash adjustment
Tech Specs
- Intermittent Torque: 500 lb-ft (678 Nm) - Check Application Pages for Actual Torque Ratings
- Shift Type: Lever Mechanical
- Output Shaft Type: 1-1/2"-10T Spline with 1410 Companion Flange
- Mounting Type: 8-Bolt
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 48 HP (36 kW) at 500 RPM; 95 HP (71 kW) at 1,000 RPM
- Transmission Compatibility: Volvo/Mack, Allison, Eaton/Fuller, Other
Additional Information
The Chelsea 880 Series is designed for demanding on-highway and off-highway applications including bulk haulers, fire trucks, oil field equipment, aerial units, winch systems, and large truck recovery vehicles. The 880 Series features constant mesh input gears suited for both high-speed and high-torque service. Tapered cone bearings provide load-bearing durability across these demanding duty cycles. The 880 Series PTO also supports continuous operation with a 30% de-rating applied. For installation and parts references, Parker publishes the 880 Series Owner's Manual (HY25-2880-M1_US parts list) and the Chelsea Service Manual (HY25-6880-M1/US).
Parts manual and diagrams: Chelsea 880 Series PTO parts list with prices
