The Chelsea 880DMMBX-P6XV is an 8-bolt, lever mechanical shift Power Take-Off Assembly built for heavy-duty applications including fire trucks, oil field equipment, bulk haulers, large recovery trucks, and aerial units. This 880 Series PTO features a 1-1/2"-10T spline output shaft with a 1410 companion flange, rated for intermittent torque in the 401-500 lb-ft range (check application pages for the actual rating for your specific configuration). Shaft power output reaches 48 HP at 500 RPM and 95 HP at 1000 RPM. The dual-pump output allows a hydraulic pump to be mounted on each end of the unit, and the removable shift cover simplifies backlash adjustment during installation. The cast iron housing is designed for continuous operation with a 30% de-rating. Compatible with Volvo/Mack, Allison, and Eaton/Fuller transmissions, among others. Call us to confirm proper fit for your application.

The Chelsea 880 Series is suited for oil and gas, aerial, mining, on-highway, and other mobile equipment markets. Typical applications include bulk haulers, fire trucks, oil field equipment, winch systems, aerial platforms, and large truck recovery vehicles. Tapered cone bearings provide strong load-bearing capability across high- and low-speed, high-torque operating conditions. The 880 Series uses constant mesh input gears. Output flange options across the series include SAE B, SAE C, and ISO 7652 pump flanges as well as driveline configurations. For part-specific application confirmation, contact Pro Gear and Transmission directly.
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 series companion flange
Dual-pump output configuration allows a pump to be mounted on each end of the PTO
Shaft power: 48 HP (500 RPM) / 95 HP (1000 RPM)
Removable shift cover for simplified, accurate backlash adjustment during installation
Tech Specs
- Intermittent Torque: 401-500 lb-ft / 501+ Nm (500 lb-ft / 678 Nm, check application pages for actual torque rating)
- 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 at 500 RPM / 95 HP at 1000 RPM (36 kW at 500 RPM / 71 kW at 1000 RPM)
- Transmission Compatibility: Volvo/Mack, Allison, Eaton/Fuller, Other
- Continuous Operation: Yes, with 30% de-rating
- Housing Material: Cast Iron
Additional Information

The Chelsea 880 Series is suited for oil and gas, aerial, mining, on-highway, and other mobile equipment markets. Typical applications include bulk haulers, fire trucks, oil field equipment, winch systems, aerial platforms, and large truck recovery vehicles. Tapered cone bearings provide strong load-bearing capability across high- and low-speed, high-torque operating conditions. The 880 Series uses constant mesh input gears. Output flange options across the series include SAE B, SAE C, and ISO 7652 pump flanges as well as driveline configurations. For part-specific application confirmation, 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.