The Chelsea 871 Series Power Take-Off, part number 871XBFJW-B3RS or 871XBFJWB3RS, is a 10-bolt hydraulic PowerShift PTO engineered for Allison transmissions. The 871 Series replaces the earlier 870 Series, carrying forward a compact housing design that reduces clearance issues during installation. Continuous-duty torque capacity reaches 670 lb-ft (908 N-m) across nine available speed ratios, with thirteen output configurations to match a wide range of driven-equipment requirements. A ductile iron bearing cap rated 117% stronger than gray iron and an O-ring sealing configuration between the housing and bearing cap reduce the vibrational effects of modern engine designs. This series is the only Chelsea PTO offering all three of Chelsea's high-demand solutions: Wet Spline, SmartStart, and Quiet Gear options. Call Pro Gear and Transmission to confirm the right configuration for your application.
Features
10-bolt hydraulic PowerShift mounting for Allison transmissions
Ductile iron bearing cap, 117% stronger than gray iron
O-ring sealing between housing and bearing cap reduces vibrational effects and improves clamp load
Up to 670 lb-ft (908 N-m) continuous torque capacity, no derating required for continuous duty
Nine speed ratios and thirteen output options
Wet Spline pump flange, SmartStart, and Quiet Gear options available on this series
Electronic Overspeed Control (EOC) option 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)
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1000 RPM
- Speed Ratios: Nine available
- Output Options: Thirteen available
- 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 Flange Types: SAE B Pump Flange, SAE C Pump Flange
- 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.
