The Chelsea 880XMAHP-M4XS or 880XMAHPM4XS is an 8-bolt power take-off assembly from the Chelsea 880 Series, engineered for heavy-duty, high-torque service on manual transmissions from Volvo/Mack, Allison, and Eaton/Fuller. It shifts via lever mechanical control and delivers shaft power of 48 HP at 500 RPM and 95 HP at 1,000 RPM, with an intermittent torque rating of up to 500 lb-ft (678 Nm) - verify actual ratings against Chelsea application pages for your specific transmission. The output shaft is a 1-1/2"-10T spline paired with a 1410 companion flange, suited for driveline or pump-drive configurations. The cast iron housing pairs with a removable shift cover that makes backlash adjustment straightforward. Dual-pump output allows a hydraulic pump to be mounted on each end of the unit. Common applications include bulk haulers, fire trucks, oil field equipment, and large truck recovery. A genuine Chelsea part, sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
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 through the 880 Series
1-1/2"-10T spline output shaft with 1410 series companion flange for driveline or pump-drive use
Shaft power rated at 48 HP (500 RPM) and 95 HP (1,000 RPM)
Intermittent torque capacity up to 500 lb-ft (678 Nm) - check Chelsea application pages for transmission-specific ratings
Dual-pump output allows hydraulic pump mounting on both ends of the PTO
Tech Specs
- Intermittent Torque: Up to 500 lb-ft (678 Nm) - Check Application Pages for Actual Torque Ratings
- Transmission Compatibility: Volvo/Mack, Allison, Eaton/Fuller, Other
- 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 (500 RPM), 95 HP (1,000 RPM) / 36 kW (500 RPM), 71 kW (1,000 RPM)
- Continuous Operation: Yes, with 30% de-rating
Additional Information
Parts Manual: Chelsea 880 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
