871XDFJW-B5RF Chelsea PTO Assembly

The Chelsea 871 Series Power Take-Off, part number 871XDFJW-B5RF or 871XDFJWB5RF, is a 10-bolt hydraulic PowerShift PTO designed for Allison transmissions. It 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 cover a wide range of hydraulic pump configurations, including SAE B, SAE BB, SAE C, and DIN pump spline outputs, plus companion flange options. A ductile iron bearing cap rated 117% stronger than gray iron and an O-ring sealing configuration between the housing and bearing cap reduce vibrational effects and improve clamp load. Wet Spline lubrication, SmartStart shock-load reduction, and Electronic Overspeed Control (EOC) are all available on this series. Call us to confirm proper fit for your application.

Features

10-bolt hydraulic PowerShift mounting, designed for Allison transmissions
Continuous torque capacity up to 670 lb-ft (908 N-m) - no derating required for continuous duty
Ductile iron bearing cap, 117% stronger than gray iron, with O-ring seal between housing and bearing cap
Nine speed ratios and thirteen output options including SAE B, SAE BB, SAE C pump splines and flange outputs
Wet Spline pump flange lubrication extends PTO and pump shaft service life
SmartStart option reduces shock load at start-up; 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)
• 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
• Lubrication: Pressure Lube (P) and Wet Spline (W)
• Continuous Operation: Yes

Additional Information

Parts manual and diagrams: Chelsea 871 Series PTO parts list with prices