871XAFJP-B3AC Chelsea PTO Assembly

The Chelsea 871XAFJP-B3AC or 871XAFJPB3AC is a 10-bolt PowerShift (hydraulic) Power Take-Off from the Chelsea 871 Series, designed for Allison transmission applications. The series carries a continuous torque rating up to 670 lb-ft (908 N-m) with no derating required for continuous duty. Nine speed ratios and thirteen output options give installers broad flexibility across fire and rescue, truck crane, pumper cleaner, and refuse applications. The ductile iron bearing cap is 117% stronger than gray iron, and the O-ring sealing configuration between housing and bearing cap reduces vibrational effects while improving clamp load. Wet Spline lubrication extends PTO and pump shaft service life. Optional SmartStart reduces shock load at start-up; optional Quiet Gear input and Electronic Overspeed Control (EOC) are also available. The compact housing minimizes clearance concerns during installation. Call us to confirm proper fit for your specific application.

Features

10-bolt PowerShift (hydraulic) mounting for Allison transmissions
Continuous torque capacity up to 670 lb-ft (908 N-m) - no derating required for continuous duty
Ductile iron bearing cap rated 117% stronger than gray iron
O-ring sealing configuration between housing and bearing cap reduces vibrational effects and improves clamp load
Nine speed ratios and thirteen output options for application flexibility
Wet Spline pump flange, optional SmartStart, optional Quiet Gear input, and Electronic Overspeed Control (EOC) available

Tech Specs

• Mounting Type: 10-Bolt
• Shift Type: PowerShift (Hydraulic)
• Transmission Manufacturer: Allison
• Continuous Torque: 670 lb-ft (908 N-m)
• Speed Ratios: Nine
• Output Options: Thirteen
• Lubrication: Pressure Lube and Wet Spline
• Continuous Operation: Yes
• Options Available: SmartStart, Quiet Gear Input, Electronic Overspeed Control (EOC)

Additional Information

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