871XFFJP-B5RZ Chelsea PTO Assembly

The Chelsea 871 Series Power Take-Off, part number 871XFFJP-B5RZ or 871XFFJPB5RZ, is a 10-bolt PowerShift (hydraulic) 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 application requirements, including SAE B, SAE BB, and SAE C pump spline outputs. A 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 and resists vibration. Optional Wet Spline pump flange, SmartStart, and Quiet Gear configurations are available within the 871 Series. The 871 Series replaces the Chelsea 870 Series. Call us to confirm proper fitment and option build for your application.

Features

10-bolt PowerShift (hydraulic) mount for Allison transmissions
Continuous torque capacity up to 670 lb-ft (908 N-m) - no continuous-duty derating required
Ductile iron bearing cap rated 117% stronger than gray iron
O-ring sealing between housing and bearing cap reduces vibration effects and improves clamp load
Nine speed ratios and thirteen output options including SAE B, SAE BB, and SAE C pump spline
Optional Wet Spline pump flange, SmartStart shock-load reduction, Quiet Gear input, and Electronic Overspeed Control (EOC)

Tech Specs

• Mounting Type: 10-Bolt
• Shift Type: PowerShift (Hydraulic)
• Transmission Manufacturer: Allison
• Continuous Torque: 670 lb-ft (908 N-m) - check application pages for actual ratings
• Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM
• Speed Ratios: Nine available
• Output Options: Thirteen available
• 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 Flange Types: SAE B Pump Flange, SAE C Pump Flange
• Lubrication: Pressure Lube, Wet Spline available
• Continuous Operation: Yes

Additional Information

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