The Chelsea 871 Series Power Take-Off, part number 871XEFJW-D3RY or 871XEFJWD3RY, is a 10-bolt PowerShift (hydraulic) PTO engineered for Allison transmissions. The 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 provide broad installation flexibility, while the compact housing minimizes clearance conflicts in tight engine compartments. A ductile iron bearing cap, rated 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap address the vibrational loads common in modern engine designs. Optional Wet Spline, SmartStart, and Quiet Gear configurations are also available for this series. Call us to confirm the correct fit and configuration for your application.
Features
10-Bolt PowerShift (hydraulic) 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
Continuous torque capacity up to 670 lb-ft (908 N-m), rated for continuous duty
Nine speed ratios and thirteen output options
Wet Spline, SmartStart, and Quiet Gear options available; 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 (check application pages for actual torque ratings)
- 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"-13T) Pump Spline, SAE BB (1"-15T) Pump Spline, SAE C (1-1/4"-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
- Lubricant System: Pressure Lube with Wet Spline option
- 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.
