The Chelsea 871 Series Power Take-Off, part number 871XBFJP-B5AC or 871XBFJPB5AC, is a 10-bolt hydraulic PowerShift PTO designed 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 applications. Nine speed ratios and thirteen output options give installers flexibility across a wide range of vocational setups. The ductile iron bearing cap is 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap reduces vibrational effects and improves clamp load. The compact housing minimizes clearance concerns during installation. Optional Wet Spline, SmartStart, and Quiet Gear configurations are available within the series. The 871 Series replaces the earlier Chelsea 870 Series PTO. Call us to confirm the correct configuration for your application.
Features
10-bolt mounting configuration for Allison transmissions
Hydraulic PowerShift (continuous duty rated, no derating required)
Continuous torque capacity up to 670 lb-ft / 908 N-m
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, SmartStart, and Quiet Gear options available within series
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 torque ratings)
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1,000 RPM (48 kW at 500 RPM / 95 kW at 1,000 RPM)
- Output Shaft Options: 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 Type Options: SAE B Pump Flange, SAE C Pump Flange
- Speed Ratios: Nine
- Output Options: Thirteen
- Lubrication: Pressure Lube / Wet Spline
- Continuous Operation: Yes
- 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.
