The Chelsea 871XBQTP-N5RY is a 10-bolt PowerShift (hydraulic) Power Take-Off from the Chelsea 871 Series, designed for Allison transmissions. The 871 Series delivers continuous torque capacity up to 670 lb-ft (908 Nm) with no derating required for continuous-duty applications. Its compact housing reduces clearance concerns during installation, and multiple assembly arrangements expand mounting flexibility. The 871 Series features a ductile iron bearing cap rated 117% stronger than the gray iron cap used in the predecessor 870 Series, along with an o-ring sealing configuration between the housing and bearing cap to improve clamp load and resist vibrational stress. Nine speed ratios and thirteen output options cover a wide range of application requirements. The 871 Series is the only Chelsea PTO offering Wet Spline, SmartStart, and Quiet Gear options within a single platform.
Features
10-bolt mounting, PowerShift (hydraulic) shift type
Continuous torque up to 670 lb-ft (908 Nm) - no derating required for continuous duty
Ductile iron bearing cap - 117% stronger than the gray iron predecessor
O-ring sealing between housing and bearing cap for improved clamp load
Nine speed ratios and thirteen output options
Wet Spline, SmartStart, and Quiet Gear options available within the 871 Series platform
Electronic Overspeed Control (EOC) protects driven equipment
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque: 670 lb-ft (908 Nm)
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM
- Output Shaft Options: SAE B (7/8"-13T) Pump Spline, SAE BB (1"-15T) Pump Spline, SAE C (1-1/4"-14T) Pump Spline, DIN 5462 Pump Spline, 1410 Series Companion Flange, DIN 120 Flange, DIN 100 Flange
- Output Flange Options: SAE B Pump Flange, SAE C Pump Flange
- Lubricant: Pressure Lube (P), Wet Spline (W)
- Continuous Operation: Yes
- Speed Ratios: Nine
- Output Options: Thirteen
- Bearing Cap Material: Ductile Iron
- Applications: Fire and Rescue, Truck Cranes, Pumper Cleaner, Refuse
Additional Information
The Chelsea 871 Series supersedes the 870 Series PTO. The upgraded ductile iron bearing cap and revised o-ring sealing configuration address vibrational loads from modern engine designs. The 871 Series is the only Chelsea PTO to combine Wet Spline pump flange protection, SmartStart shock-load reduction, and Quiet Gear input in a single 10-bolt platform. Related manufacturer documents include the 267/281/288/871/878 Series Owner's Manual, 871 Series Parts List (HY25-2871-M1/US), and 871 Series Sales Literature.Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
