The Chelsea 871 Series Power Take-Off Assembly, part number 871XDFJP-B3RS or 871XDFJPB3RS, is a 10-bolt hydraulic PowerShift PTO built 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 operation. Nine speed ratios and thirteen output options give you flexibility across a wide range of hydraulic and mechanical drive applications. The compact housing keeps clearance issues to a minimum. This unit carries over Chelsea's three high-demand solutions in a single platform: Wet Spline pump flange for extended PTO and pump shaft life, SmartStart to reduce shock load at start-up, and the Quiet Gear input option. 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 effects of engine vibration. Call us to confirm proper fit for your application.
Features
10-bolt hydraulic PowerShift mounting, rated for Allison transmission applications
Continuous torque capacity up to 670 lb-ft (908 N-m) with no continuous-duty derating required
Ductile iron bearing cap, 117% stronger than gray iron
O-ring sealing between housing and bearing cap reduces vibrational effects and improves clamp load
Nine speed ratios and thirteen output configurations
Wet Spline pump flange, SmartStart, and Quiet Gear options available on a single platform
Electronic Overspeed Control (EOC) protects driven equipment
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque: 670 lb-ft (908 N-m) - check application pages for actual ratings
- 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 Types: SAE B Pump Flange, SAE C Pump Flange
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM
- Continuous Operation: Yes
- Lubrication: Pressure Lube and Wet Spline options
- Options Available: Wet Spline, SmartStart, Quiet Gear, Electronic Overspeed Control (EOC)
- Replaces: Chelsea 870 Series PTO
Additional Information
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
