The Chelsea 871 Series Power Take-Off, part number 871XHFJP-H5AC or 871XHFJPH5AC, is a 10-bolt hydraulic PowerShift PTO designed for Allison transmissions. The series delivers continuous torque capacity up to 670 lb-ft (908 N-m) with no derating required for continuous-duty operation. Nine speed ratios and thirteen output options give installers the flexibility to match a wide range of driven equipment. The compact housing keeps clearance issues in check, and the ductile iron bearing cap is 117% stronger than the gray iron design it replaced. An O-ring sealing configuration between the housing and bearing cap improves clamp load and resists vibrational stress from modern engine designs. Optional Wet Spline, SmartStart, and Quiet Gear configurations are all available within this series. The 871 Series also replaces the earlier Chelsea 870 Series PTO. Call us to confirm the right configuration for your application.
The 871 Series is the only Chelsea PTO to offer all three of Chelsea's high-demand options in a single platform: Wet Spline for extended pump shaft life, SmartStart to reduce shock load at start-up, and Quiet Gear for noise-sensitive applications. Electronic Overspeed Control (EOC) is also available to protect downstream driven equipment. The 871 Series is engineered for demanding vocational markets including fire and rescue, refuse, pumper-cleaner, and truck crane applications. This assembly directly replaces the Chelsea 870 Series PTO.
Features
10-bolt hydraulic PowerShift mounting for Allison transmissions
Continuous torque capacity up to 670 lb-ft (908 N-m) with no continuous-duty derating required
Ductile iron bearing cap, 117% stronger than gray iron predecessor
O-ring sealing between housing and bearing cap reduces vibrational stress and improves clamp load
Nine speed ratios and thirteen output options
Wet Spline, SmartStart, and Quiet Gear options available; 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 N-m) -- check application pages for actual torque ratings
- Speed Ratios: Nine
- Output Options: Thirteen
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1000 RPM (48 kW at 500 RPM / 95 kW at 1000 RPM)
- Lubricant: Pressure Lube (P) and Wet Spline (W) configurations available
- 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
- Continuous Operation: Yes
- Optional Features: Wet Spline, SmartStart, Quiet Gear, Electronic Overspeed Control (EOC)
- Replaces: Chelsea 870 Series PTO
Additional Information
The 871 Series is the only Chelsea PTO to offer all three of Chelsea's high-demand options in a single platform: Wet Spline for extended pump shaft life, SmartStart to reduce shock load at start-up, and Quiet Gear for noise-sensitive applications. Electronic Overspeed Control (EOC) is also available to protect downstream driven equipment. The 871 Series is engineered for demanding vocational markets including fire and rescue, refuse, pumper-cleaner, and truck crane applications. This assembly directly replaces the Chelsea 870 Series PTO.
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
