The Chelsea 871 Series Power Take-Off, part number 871XEFJP-D5SB or 871XEFJPD5SB, is a 10-bolt hydraulic PowerShift PTO designed for Allison transmissions. The 871 Series carries a continuous torque rating of up to 670 lb-ft (908 N-m) with no derating required for continuous-duty applications. Nine speed ratios and thirteen output options give installers flexibility across a wide range of hydraulic and work-body setups. A ductile iron bearing cap, rated 117% stronger than gray iron, pairs with an O-ring sealing configuration between the housing and bearing cap to resist the vibrational loads common in modern engine designs. The 871 Series is the only Chelsea PTO to combine Wet Spline, SmartStart, and Quiet Gear options in a single housing. Sold by Pro Gear and Transmission. Call us to confirm proper fitment for your application.

• Mounting Type: 10-Bolt
• Shift Type: PowerShift (Hydraulic)
• Transmission Compatibility: Allison
• Continuous Torque: 670 lb-ft (908 N-m)
• Shaft Power: 64 HP at 500 RPM / 128 HP at 1,000 RPM
• Speed Ratios: Nine
• Output Options: Thirteen
• Lubricant: Pressure Lube and Wet Spline
• Continuous Operation: Yes

The 871 Series replaces the earlier Chelsea 870 Series PTO. Applicable Parker documentation includes the 267/281/288/871/878 Series Owner's Manual, the 871 Series Parts List (HY25-2871-M1/US), and 871 Series Sales Literature. Common markets for this series include fire and rescue, truck cranes, pumper cleaner, and refuse applications.