The Chelsea 871 Series Power Take-Off, part number 871XFFJP-B3AC or 871XFFJPB3AC, is a 10-bolt hydraulic PowerShift PTO designed for Allison transmissions. The compact housing minimizes clearance concerns, and continuous-duty torque capacity reaches 670 lb-ft (908 N-m) with no derating required for continuous operation. Nine speed ratios and thirteen output options cover a wide range of installations, from fire and rescue to refuse 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 improves clamp load while reducing the vibrational effects of modern engine designs. Options include Wet Spline pump flange, SmartStart shock-load reduction, Quiet Gear input, and Electronic Overspeed Control (EOC). Call us to confirm proper fit for your application.
Features
10-bolt hydraulic PowerShift mounting for Allison transmissions
Continuous-duty torque capacity up to 670 lb-ft (908 N-m), no derating required
Ductile iron bearing cap, 117% stronger than gray iron
O-ring seal between housing and bearing cap reduces vibration effects and improves clamp load
Nine speed ratios and thirteen output options
Wet Spline pump flange, SmartStart, Quiet Gear, and Electronic Overspeed Control (EOC) options available
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque: 670 lb-ft (908 N-m)
- Speed Ratios: Nine
- Output Options: Thirteen
- Continuous Operation: Yes
- Output Types: SAE B Pump Flange, SAE C Pump Flange
- Lubricant Options: Pressure Lube (P), Wet Spline (W)
- Series: 871
Additional Information
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
