The Chelsea 880GMAHX-H3XK or 880GMAHXH3XK is an 880 Series heavy-duty power take-off assembly built for 8-bolt manual transmission apertures. This unit uses a lever mechanical shift and delivers an intermittent torque rating of up to 500 lb-ft (678 Nm) - check application pages for confirmed ratings on your specific setup. The output shaft is a 1-1/2"-10T spline with a 1410 companion flange, suited for high-torque driveline work. Shaft power measures 48 HP at 500 RPM and 95 HP at 1,000 RPM. Compatible transmissions include Volvo/Mack, Allison, and Eaton/Fuller applications. The cast iron housing incorporates a dual-pump output, letting you mount a pump on each end. Call us to confirm fitment for your transmission.
The 880 Series PTO is suited for demanding on-highway and off-highway work including bulk haulers, fire trucks, oil field equipment, aerial lifts, winch systems, and large truck recovery. Tapered cone bearings handle heavy radial and axial loads. The removable shift cover simplifies backlash adjustment during installation. For application-specific torque ratings and transmission compatibility, consult the 880 Series application pages or contact Pro Gear and Transmission directly.
Features
8-bolt mounting for most manual transmissions including Volvo/Mack, Allison, and Eaton/Fuller
Lever mechanical shift with optional air control shift available for the 880 Series
1-1/2" - 10T spline output shaft with 1410 companion flange
Intermittent torque rated up to 500 lb-ft (678 Nm) - verify with application pages
Shaft power: 48 HP at 500 RPM, 95 HP at 1,000 RPM
Dual-pump output allows pump mounting on each end of the PTO
Cast iron housing with removable shift cover for simplified backlash adjustment
Tech Specs
- Intermittent Torque: Up to 500 lb-ft / 678 Nm (check application pages for actual 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 (500 RPM), 95 HP (1,000 RPM) / 36 kW (500 RPM), 71 kW (1,000 RPM)
- Compatible Transmissions: Volvo/Mack, Allison, Eaton/Fuller, Other
- Continuous Operation: Yes, with 30% de-rating
Additional Information
The 880 Series PTO is suited for demanding on-highway and off-highway work including bulk haulers, fire trucks, oil field equipment, aerial lifts, winch systems, and large truck recovery. Tapered cone bearings handle heavy radial and axial loads. The removable shift cover simplifies backlash adjustment during installation. For application-specific torque ratings and transmission compatibility, consult the 880 Series application pages or contact Pro Gear and Transmission directly.
Parts Manual: Chelsea 880 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
