The Chelsea 871 Series Power Take-Off, part number 871XDFJP-B5RF or 871XDFJPB5RF, 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) without derating, making it a practical fit for fire and rescue apparatus, truck cranes, pumper cleaners, and refuse trucks. Nine speed ratios and thirteen output options cover a wide range of driven-equipment requirements. The ductile iron bearing cap is 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap improves clamp load while reducing the effects of engine vibration. The compact housing height limits clearance conflicts during installation. Optional Wet Spline lubrication, SmartStart shock-load reduction, Quiet Gear input, and Electronic Overspeed Control (EOC) are available within the series. Call us to confirm the exact configuration of this assembly for your application.
The 871 Series replaces the earlier Chelsea 870 Series PTO. It is the only Chelsea PTO to offer all three high-demand options together: Wet Spline, SmartStart, and Quiet Gear. Typical markets include fire and rescue, truck cranes, pumper cleaner units, and refuse vehicles. Refer to the 871 Series Parts List (HY25-2871-M1/US) and the 267/281/288/871/878 Series Owner's Manual for full application and installation guidance.
Features
10-bolt hydraulic PowerShift mounting for Allison transmissions
Continuous-duty torque capacity up to 670 lb-ft (908 N-m) - no derating required
Ductile iron bearing cap, 117% stronger than gray iron
O-ring seal between housing and bearing cap reduces vibration effects and improves clamp load
Nine speed ratios and thirteen output options
Wet Spline pump flange, SmartStart, Quiet Gear, and Electronic Overspeed Control (EOC) options available
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
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1000 RPM
- Speed Ratios: Nine
- Output Options: Thirteen
- Output Shaft Types Available: 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 Available: SAE B Pump Flange, SAE C Pump Flange
- Lubrication: Pressure Lube / Wet Spline
- Continuous Operation: Yes
Additional Information
The 871 Series replaces the earlier Chelsea 870 Series PTO. It is the only Chelsea PTO to offer all three high-demand options together: Wet Spline, SmartStart, and Quiet Gear. Typical markets include fire and rescue, truck cranes, pumper cleaner units, and refuse vehicles. Refer to the 871 Series Parts List (HY25-2871-M1/US) and the 267/281/288/871/878 Series Owner's Manual for full application and installation guidance.
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
