The Chelsea 880 Series Power Take-Off Assembly, part number 880XDAHP-M4XS or 880XDAHPM4XS, is an 8-bolt, lever mechanical-shift PTO designed for high-torque, heavy-duty applications on manual transmissions from Volvo/Mack, Allison, Eaton/Fuller, and others. The output shaft is a 1-1/2"-10T spline with a 1410 companion flange. Intermittent torque rating reaches 500 lb-ft (678 Nm), with shaft power of 48 HP at 500 RPM and 95 HP at 1000 RPM. The cast iron housing delivers lasting durability, and the removable shift cover makes backlash adjustment straightforward during installation. Dual-pump output allows mounting a hydraulic pump on each end. Common applications include fire trucks, bulk haulers, oil field equipment, aerial units, and large recovery trucks. Call us to confirm proper fit for your transmission.
The Chelsea 880 Series is suited for demanding on-highway and off-highway applications including fire trucks, bulk haulers, oil field equipment, aerial platforms, winch systems, and large truck recovery. The 880 Series supports continuous operation with a 30% de-rating. Tapered cone bearings provide load-bearing durability across high- and low-speed operation. Constant mesh input gears maintain engagement reliability under heavy load. Part number 880XDAHP-M4XS is also referenced as SP880XDAHP-M4XS. Refer to Chelsea 880 Series application pages to confirm the actual torque rating for your specific installation.
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 configuration
1-1/2"-10T spline output shaft with 1410 series companion flange
500 lb-ft (678 Nm) intermittent torque rating (verify actual rating on application pages)
Shaft power: 48 HP at 500 RPM, 95 HP at 1000 RPM
Dual-pump output enables mounting a hydraulic pump on each end of the PTO
Removable shift cover simplifies backlash adjustment at installation
Tech Specs
- Mounting Type: 8-Bolt
- Shift Type: Lever Mechanical
- Transmission Compatibility: Volvo/Mack, Allison, Eaton/Fuller, Other
- Output Shaft Type: 1-1/2" - 10T Spline with 1410 Series Companion Flange
- Intermittent Torque: 500 lb-ft / 678 Nm (check application pages for actual torque rating)
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 48 HP (500 RPM), 95 HP (1000 RPM) / 36 kW (500 RPM), 71 kW (1000 RPM)
- Housing Material: Cast Iron
Additional Information
The Chelsea 880 Series is suited for demanding on-highway and off-highway applications including fire trucks, bulk haulers, oil field equipment, aerial platforms, winch systems, and large truck recovery. The 880 Series supports continuous operation with a 30% de-rating. Tapered cone bearings provide load-bearing durability across high- and low-speed operation. Constant mesh input gears maintain engagement reliability under heavy load. Part number 880XDAHP-M4XS is also referenced as SP880XDAHP-M4XS. Refer to Chelsea 880 Series application pages to confirm the actual torque rating for your specific installation.
Parts Manual: Chelsea 880 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
