The Chelsea 871 Series Power Take-Off Assembly, part number 871XEQTP-D5AB or 871XEQTPD5AB, 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 need to derate for continuous-duty use. Nine speed ratios and thirteen output options give this unit a wide range of installation flexibility, while a compact housing keeps clearance issues to a minimum. A ductile iron bearing cap, 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap improve clamp load and combat vibrational stress from modern engine designs. Wet Spline, SmartStart, and Quiet Gear options are all available on this series. Applications include fire and rescue, truck cranes, pumper cleaners, and refuse vehicles. Call us to confirm proper fit for your specific transmission and application.
Features
10-bolt hydraulic PowerShift mounting for Allison transmissions
Ductile iron bearing cap, 117% stronger than gray iron
Continuous torque capacity up to 670 lb-ft (908 N-m)
Nine speed ratios and thirteen output options
Wet Spline pump flange protects PTO and pump shaft during operation
Electronic Overspeed Control (EOC) option protects driven equipment; SmartStart option reduces shock load at start-up
Tech Specs
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Mounting Type: 10-Bolt
- Continuous Torque: 670 lb-ft (908 N-m)
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1000 RPM
- 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 Flanges: SAE B Pump Flange, SAE C Pump Flange
- Lubrication: Pressure Lube and Wet Spline
- Continuous Operation: Yes
- Series: Chelsea 871 (replaces 870 Series)
Additional Information
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
