Description
The Chelsea 880 Series Power Take-Off Assembly, part number 880XJITX-M6XS or 880XJITXM6XS, is an 8-bolt, lever mechanical shift PTO built for heavy-duty applications on transmissions from Volvo/Mack, Allison, and Eaton/Fuller. Output is through a 1-1/2″-10 spline shaft with a 1410 companion flange. Intermittent torque rating reaches 500 lb-ft (678 Nm); continuous operation is supported with a 30% de-rating. Shaft power output runs 48 HP at 500 RPM and 95 HP at 1000 RPM. The cast iron housing is built for oil field, fire truck, bulk hauler, large-truck recovery, and aerial platform service. Call us to confirm this unit fits your specific transmission and application.
Features
8-bolt mounting for compatibility with a wide range of 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
Intermittent torque rated up to 500 lb-ft (678 Nm); continuous operation with 30% de-rating
Shaft power: 48 HP at 500 RPM, 95 HP at 1000 RPM
Dual-pump output allows mounting a hydraulic pump on each end of the PTO
Removable shift cover with tapered cone bearings for accurate backlash adjustment and durable load handling
Tech Specs
- Intermittent Torque: 500 lb-ft (678 Nm) – Check Application Pages for Actual Torque Ratings
- Continuous Operation: Yes, with 30% de-rating
- 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 Companion Flange
- Output Power: 56+ HP (51+ kW)
- Shaft Power: 48 HP (36 kW) at 500 RPM; 95 HP (71 kW) at 1000 RPM
- Lubrication: No Pressure Lube (X designation)
Additional Information
The Chelsea 880 Series is suited for bulk haulers, product blowers, fire trucks, oil field equipment, winch systems, aerial platforms, and large truck recovery vehicles. Constant mesh input gears support both high- and low-speed, high-torque operation. The removable shift cover makes backlash adjustment straightforward and precise. Output flanges are compatible with SAE B, SAE C, and ISO 7652 pump flanges in addition to the driveline configuration on this unit. For transmission-specific fitment guidance, contact Pro Gear and Transmission before ordering.
Parts Manual: Chelsea 880 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.









