The Chelsea 871 Series Power Take-Off, part number 871XDFJP-B3AC or 871XDFJPB3AC, 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, and offers nine speed ratios plus thirteen output configurations to match a wide range of hydraulic pump setups. A ductile iron bearing cap - 117% stronger than gray iron - combined with an O-ring sealing configuration between the housing and bearing cap reduces vibration-related wear and improves clamp load. The compact housing minimizes clearance concerns during installation. Optional Wet Spline pump flange, SmartStart shock-load reduction, and Quiet Gear input make this the only Chelsea PTO to offer all three of those features in a single unit. Common applications include fire and rescue, truck cranes, pumper cleaners, and refuse trucks. Call us to confirm proper fit for your specific transmission and installation.
The 871 Series replaces the earlier Chelsea 870 Series PTO. Improvements over the 870 Series include the ductile iron bearing cap and the upgraded O-ring sealing configuration. Applicable Parker Chelsea documents include the 871 Series Parts List (HY25-2871-M1/US), the 267/281/288/871/878 Series Owner's Manual, and the 871 Series Sales Literature.
Features
10-bolt hydraulic PowerShift mount designed for Allison transmissions
Ductile iron bearing cap rated 117% stronger than gray iron
Continuous-duty torque capacity up to 670 lb-ft (908 N-m) - no derating required
Nine speed ratios and thirteen output configurations
O-ring sealing between housing and bearing cap reduces vibrational wear and improves clamp load
Optional Wet Spline pump flange, SmartStart, and Quiet Gear input available on this series
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque: 670 lb-ft / 908 N-m (verify actual rating on application pages)
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1,000 RPM
- Speed Ratios: Nine
- Output Options: Thirteen
- 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
- Lubrication: Pressure Lube and Wet Spline
- Continuous Operation: Yes
- Options: Wet Spline pump flange, SmartStart, Quiet Gear input, Electronic Overspeed Control (EOC)
Additional Information
The 871 Series replaces the earlier Chelsea 870 Series PTO. Improvements over the 870 Series include the ductile iron bearing cap and the upgraded O-ring sealing configuration. Applicable Parker Chelsea documents include the 871 Series Parts List (HY25-2871-M1/US), the 267/281/288/871/878 Series Owner's Manual, and the 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.
