The Chelsea 871 Series Power Take-Off Assembly, part number 871XBFJP-B5XV or 871XBFJPB5XV, is a compact 10-bolt PowerShift (hydraulic) PTO designed for Allison transmissions. The 871 Series carries a continuous torque rating up to 670 lb-ft (908 N-m) with no derating required for continuous-duty applications. Nine speed ratios and thirteen output options give this unit exceptional versatility across fire and rescue, refuse, pumper cleaner, and truck crane installations. 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 resisting vibration from modern engine designs. Optional Wet Spline lubrication extends PTO and pump shaft service life, SmartStart reduces shock load at start-up, Quiet Gear minimizes noise, and Electronic Overspeed Control (EOC) protects driven equipment. Call us to confirm proper fit for your specific transmission and application.
The 871 Series is the only Chelsea PTO to offer all three of Chelsea's high-demand solutions in a single platform: Wet Spline pump flange lubrication, SmartStart shock-load reduction, and Quiet Gear input. It directly replaces the earlier Chelsea 870 Series PTO. Markets served include fire and rescue, truck cranes, pumper cleaner, and refuse. Parker documents available for this series include the 267/281/288/871/878 Series Owner's Manual, the 871 Series Parts List (HY25-2871-M1/US), and the 871 Series Sales Literature.
Features
10-Bolt PowerShift (hydraulic) mounting for Allison transmissions
Continuous torque capacity up to 670 lb-ft (908 N-m) - no derating required for continuous duty
Ductile iron bearing cap rated 117% stronger than gray iron
O-ring sealing configuration between housing and bearing cap reduces vibrational effects and improves clamp load
Nine speed ratios and thirteen output options
Optional Wet Spline, SmartStart, Quiet Gear, and Electronic Overspeed Control (EOC) available in this series
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)
- Lubrication: Pressure Lube and Wet Spline options available
- 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
- Continuous Operation: Yes
Additional Information
The 871 Series is the only Chelsea PTO to offer all three of Chelsea's high-demand solutions in a single platform: Wet Spline pump flange lubrication, SmartStart shock-load reduction, and Quiet Gear input. It directly replaces the earlier Chelsea 870 Series PTO. Markets served include fire and rescue, truck cranes, pumper cleaner, and refuse. Parker documents available for this series include the 267/281/288/871/878 Series Owner's Manual, the 871 Series Parts List (HY25-2871-M1/US), 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.
