The Chelsea 871 Series Power Take-Off, part number 871XEFJW-B3RY or 871XEFJWB3RY, is a 10-bolt hydraulic PowerShift PTO designed for Allison-transmission applications. The 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 give installers a wide range of configuration choices. A ductile iron bearing cap rated 117% stronger than gray iron and an O-ring sealing configuration between the housing and bearing cap address the vibrational stress common in modern engine designs. The compact housing minimizes clearance concerns. Wet Spline lubrication, SmartStart shock-load reduction, and Quiet Gear input are all available on this series. Common markets include fire and rescue, truck cranes, pumper-cleaner, and refuse trucks. Call us to confirm proper fit for your application.
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
Nine speed ratios and thirteen output options
Ductile iron bearing cap, 117% stronger than gray iron, with O-ring sealing configuration
Wet Spline pump flange lubricates PTO and pump shaft during operation
SmartStart and Quiet Gear options available; Electronic Overspeed Control (EOC) protects driven equipment
Tech Specs
- Mounting: 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 1,000 RPM
- Speed Ratios: Nine
- Output Options: Thirteen
- Lubrication: Pressure Lube and Wet Spline
- Continuous Operation: Yes
Additional Information
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
