The Chelsea 871 Series Power Take-Off Assembly, part number 871LEFJW-B3TY or 871LEFJWB3TY, is a 10-bolt PowerShift (hydraulic shift) PTO designed for Allison transmissions. The 871 Series is rated for continuous-duty operation with torque capacity up to 670 lb-ft (908 N-m), making derating unnecessary. Nine speed ratios and thirteen output options cover a wide range of application requirements. 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 vibrational effects. Optional Wet Spline, SmartStart, and Quiet Gear configurations are available within this series. Call us to confirm proper fit and configuration for your specific application.
The 871 Series replaces the Chelsea 870 Series PTO and carries all improvements forward. Markets served by this series include fire and rescue, truck cranes, pumper cleaners, and refuse vehicles. The 871 Series is the only Chelsea PTO to offer all three of Chelsea's high-demand options - Wet Spline, SmartStart, and Quiet Gear - in a single platform. Reference documents for this series include the 871 Series Parts List (HY25-2871-M1/US) and the 267/281/288/871/878 Series Owner's Manual, available from Parker Chelsea.
Features
10-bolt PowerShift (hydraulic shift) mounting configuration 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 predecessor
O-ring sealing configuration between housing and bearing cap reduces vibrational effects and improves clamp load
Nine speed ratios and thirteen output options across the 871 Series
Wet Spline pump flange, SmartStart, and Quiet Gear options available within the series; Electronic Overspeed Control (EOC) protects driven equipment
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque Capacity: 670 lb-ft (908 N-m)
- Speed Ratios: Nine
- Output Options: Thirteen
- Lubricant System: Pressure Lube and Wet Spline
- Continuous Operation: Yes
- Output Shaft Types Available: 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 Available: SAE B Pump Flange, SAE C Pump Flange
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM (series rating)
- NMFC Code: 125820 (Hydraulic PTOs, Pumps, Motors)
Additional Information
The 871 Series replaces the Chelsea 870 Series PTO and carries all improvements forward. Markets served by this series include fire and rescue, truck cranes, pumper cleaners, and refuse vehicles. The 871 Series is the only Chelsea PTO to offer all three of Chelsea's high-demand options - Wet Spline, SmartStart, and Quiet Gear - in a single platform. Reference documents for this series include the 871 Series Parts List (HY25-2871-M1/US) and the 267/281/288/871/878 Series Owner's Manual, available from Parker Chelsea.
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
