The Chelsea 871 Series Power Take-Off, part number 871XCFJP-B5BV or 871XCFJPB5BV, is a 10-bolt PowerShift (hydraulic shift) 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 operation. Nine speed ratios and thirteen output options cover a wide range of hydraulic pump configurations. 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 vibration damage. Optional Wet Spline pump flange, SmartStart, and Quiet Gear configurations are available within this series. Typical markets include fire and rescue, truck cranes, pumper cleaners, and refuse vehicles. Call us to confirm the correct configuration for your application.
The Chelsea 871 Series replaces the earlier 870 Series PTO. Upgrades introduced with the 871 Series include the ductile iron bearing cap and the O-ring sealing configuration, both aimed at handling the increased vibration loads of current and future engine designs. The 871 Series is the only Chelsea PTO to offer all three of Chelsea's high-demand options together: Wet Spline, SmartStart, and Quiet Gear. Relevant Parker documentation includes the 871 Series Parts List (HY25-2871-M1/US) and the 267/281/288/871/878 Series Owner's Manual.
Features
10-bolt PowerShift (hydraulic shift) mounting configuration for Allison transmissions
Continuous torque capacity up to 670 lb-ft / 908 N-m, no derating required for continuous duty
Nine speed ratios and thirteen output options for broad hydraulic pump compatibility
Ductile iron bearing cap, 117% stronger than gray iron, for increased durability
O-ring sealing between housing and bearing cap reduces vibration effects and improves clamp load
Optional Wet Spline pump flange, SmartStart shock-load reduction, and Quiet Gear input available
Tech Specs
- Mounting: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque: 670 lb-ft / 908 N-m (check application pages for actual rating)
- 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
- Continuous Operation: Yes
- Lubricant: Pressure Lube / Wet Spline
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM
Additional Information
The Chelsea 871 Series replaces the earlier 870 Series PTO. Upgrades introduced with the 871 Series include the ductile iron bearing cap and the O-ring sealing configuration, both aimed at handling the increased vibration loads of current and future engine designs. The 871 Series is the only Chelsea PTO to offer all three of Chelsea's high-demand options together: Wet Spline, SmartStart, and Quiet Gear. Relevant Parker documentation includes the 871 Series Parts List (HY25-2871-M1/US) and the 267/281/288/871/878 Series Owner's Manual.
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
