The Chelsea 871 Series Power Take-Off assembly, part number 871XHFJP-B5SV or 871XHFJPB5SV, is a 10-bolt hydraulic PowerShift PTO designed for Allison transmissions. The 871 Series delivers continuous-duty torque capacity up to 670 lb-ft (908 N-m) across nine available speed ratios, with thirteen output configurations to suit a wide range of vocational applications including fire and rescue, refuse, truck cranes, and pumper cleaners. The ductile iron bearing cap is 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap reduces vibration-related wear and improves clamp load. Chelsea's 871 Series is the only Chelsea PTO to combine Wet Spline, SmartStart, and Quiet Gear options in one platform. Call us to confirm the right configuration for your application.
The Chelsea 871 Series replaces the earlier 870 Series PTO. The compact housing profile reduces installation clearance issues, and multiple assembly arrangements expand mounting possibilities. Electronic Overspeed Control (EOC) is available to protect driven equipment from damaging overspeed events. SmartStart reduces shock load at start-up in applicable configurations. Relevant Chelsea documentation includes the 267/281/288/871/878 Series Owner Manual, 871 Series Parts List (HY25-2871-M1/US), and 871 Series Sales Literature.
Features
10-bolt hydraulic PowerShift mounting for Allison transmissions
Ductile iron bearing cap - 117% stronger than gray iron
Continuous-duty torque capacity up to 670 lb-ft (908 N-m)
Nine speed ratios and thirteen output options for broad application coverage
O-ring sealing configuration reduces vibration effects and improves clamp load
Wet Spline, SmartStart, and Quiet Gear options available - the only Chelsea PTO offering all three
Tech Specs
- Mounting: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque: 670 lb-ft (908 N-m)
- Speed Ratios: Nine available
- Output Options: Thirteen available
- Lubricant System: Pressure Lube and Wet Spline options
- Output Shaft Types: SAE B (7/8 in. - 13T) Pump Spline, SAE BB (1 in. - 15T) Pump Spline, SAE C (1-1/4 in. - 14T) Pump Spline, DIN 5462 Pump Spline, 1410 Series Companion Flange, DIN 120 Flange, DIN 100 Flange
- Output Flange Types: SAE B Pump Flange, SAE C Pump Flange
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM
- Continuous Operation: Yes
- Options: Wet Spline, SmartStart, Quiet Gear, Electronic Overspeed Control (EOC)
- Markets: Fire and Rescue, Truck Cranes, Pumper Cleaner, Refuse
Additional Information
The Chelsea 871 Series replaces the earlier 870 Series PTO. The compact housing profile reduces installation clearance issues, and multiple assembly arrangements expand mounting possibilities. Electronic Overspeed Control (EOC) is available to protect driven equipment from damaging overspeed events. SmartStart reduces shock load at start-up in applicable configurations. Relevant Chelsea documentation includes the 267/281/288/871/878 Series Owner 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.
