The Chelsea 871 Series Power Take-Off, part number 871XAFJP-G5RF or 871XAFJPG5RF, is a 10-bolt PowerShift (hydraulic) PTO designed for Allison transmissions. The 871 Series delivers continuous torque capacity up to 670 lb-ft (908 N-m) with no derating required for continuous duty. Nine speed ratios and thirteen output options cover a wide range of vocational requirements, including fire and rescue, refuse, pumper/cleaner, and truck crane applications. 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. Wet Spline lubrication, SmartStart, and Quiet Gear options are all available on this series. Call us to confirm proper fit for your specific transmission and application.
The Chelsea 871 Series replaces the earlier 870 Series PTO. Applicable Parker documentation includes the 267/281/288/871/878 Series Owner's Manual, the 871 Series Parts List (HY25-2871-M1/US), and 871 Series Sales Literature. Electronic Overspeed Control (EOC) is available to protect driven equipment from overspeed events.
Features
10-bolt PowerShift (hydraulic) mounting for Allison transmissions
Continuous torque capacity up to 670 lb-ft (908 N-m) with no derating for continuous duty
Nine speed ratios for broad application flexibility
Thirteen output options including SAE B, SAE C, and DIN pump flanges and splines
Ductile iron bearing cap rated 117% stronger than gray iron
O-ring sealing configuration reduces vibration effects and improves clamp load
Wet Spline pump flange, SmartStart, and Quiet Gear options available on this series
Tech Specs
- Mounting: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque: 670 lb-ft (908 N-m)
- 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
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM
- Lubrication: Pressure Lube and Wet Spline
- Continuous Operation: Yes
Additional Information
The Chelsea 871 Series replaces the earlier 870 Series PTO. Applicable Parker documentation includes the 267/281/288/871/878 Series Owner's Manual, the 871 Series Parts List (HY25-2871-M1/US), and 871 Series Sales Literature. Electronic Overspeed Control (EOC) is available to protect driven equipment from overspeed events.
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
