The Chelsea 871 Series Power Take-Off, part number 871XAFJP-B3RY or 871XAFJPB3RY, is a 10-bolt hydraulic PowerShift PTO designed for Allison transmission applications. The 871 Series carries a continuous torque rating of up to 670 lb-ft (908 N-m) with no derating required for continuous-duty use. Nine speed ratios and thirteen output configurations give this unit broad application flexibility across fire and rescue, refuse, truck crane, and pumper-cleaner trucks. A ductile iron bearing cap delivers 117% greater strength than gray iron, while an O-ring sealing configuration between the housing and bearing cap reduces vibrational effects and improves clamp load. Optional Wet Spline, SmartStart, and Quiet Gear features are all available on this series. Call us to confirm proper fit for your application.
The 871 Series replaces the Chelsea 870 Series PTO. It is the only Chelsea PTO to offer all three premium options - Wet Spline, SmartStart, and Quiet Gear - on a single platform. Electronic Overspeed Control (EOC) is available to protect driven equipment. Compact housing height reduces clearance issues common on tighter installations. Typical markets include fire and rescue, refuse, truck cranes, and pumper-cleaner vehicles.
Features
10-bolt hydraulic PowerShift mounting for Allison transmissions
Continuous torque rating up to 670 lb-ft (908 N-m), no continuous-duty derating required
Ductile iron bearing cap, 117% stronger than gray iron
O-ring seal between housing and bearing cap reduces vibrational effects and improves clamp load
Nine speed ratios and thirteen output configurations
Optional Wet Spline, SmartStart, and Quiet Gear features available on this series
Tech Specs
- Mounting: 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
- Lubrication: Pressure Lube and Wet Spline
- Continuous Operation: Yes
- Series: Chelsea 871
Additional Information
The 871 Series replaces the Chelsea 870 Series PTO. It is the only Chelsea PTO to offer all three premium options - Wet Spline, SmartStart, and Quiet Gear - on a single platform. Electronic Overspeed Control (EOC) is available to protect driven equipment. Compact housing height reduces clearance issues common on tighter installations. Typical markets include fire and rescue, refuse, truck cranes, and pumper-cleaner vehicles.
Parts manual and diagrams: Chelsea 871 Series PTO parts list with prices
