The Chelsea 871 Series Power Take-Off, part number 871XAFJP-G3AB or 871XAFJPG3AB, is a 10-bolt hydraulic PowerShift PTO engineered for Allison transmission applications. The 871 Series delivers continuous torque capacity up to 670 lb-ft (908 N-m) with no derating required for continuous-duty use. Nine speed ratios and thirteen output options cover a broad range of installation requirements, while the compact housing height reduces clearance conflicts. A ductile iron bearing cap rates 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap improves clamp load and reduces the vibrational effects common with modern engine designs. Optional Wet Spline pump flange, SmartStart, and Quiet Gear configurations make the 871 Series the only Chelsea PTO to offer all three of those solutions in a single platform. Call us to confirm the right configuration for your application.
The Chelsea 871 Series replaces the earlier 870 Series PTO. Applicable markets include fire and rescue apparatus, truck cranes, pumper-cleaner units, and refuse vehicles. Parker Chelsea publishes the 871 Series Parts List (HY25-2871-M1/US) and the 267/281/288/871/878 Series Owner's Manual for detailed assembly and service information.
Features
10-bolt hydraulic PowerShift mounting for Allison transmissions
Continuous torque capacity up to 670 lb-ft (908 N-m) - no continuous-duty derating required
Ductile iron bearing cap, 117% stronger than gray iron
O-ring sealing configuration between housing and bearing cap reduces vibration effects and improves clamp load
Nine speed ratios and thirteen output options
Optional Wet Spline pump flange, SmartStart shock-load reduction, Quiet Gear input, and Electronic Overspeed Control (EOC)
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque: 670 lb-ft (908 N-m)
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1000 RPM
- Speed Ratios: Nine
- Output Options: Thirteen
- Lubricant System: Pressure Lube and Wet Spline
- 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
- Optional Features: Quiet Gear Input, SmartStart, Wet Spline Pump Flange, Electronic Overspeed Control (EOC)
Additional Information
The Chelsea 871 Series replaces the earlier 870 Series PTO. Applicable markets include fire and rescue apparatus, truck cranes, pumper-cleaner units, and refuse vehicles. Parker Chelsea publishes the 871 Series Parts List (HY25-2871-M1/US) and the 267/281/288/871/878 Series Owner's Manual for detailed assembly and service information.
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
