The Chelsea 871 Series Power Take-Off, part number 871XEFJP-G5RZ or 871XEFJPG5RZ, is a compact 10-bolt PowerShift (hydraulic-shift) PTO designed for Allison transmission applications. The 871 Series succeeds Chelsea's popular 870 Series, adding a ductile iron bearing cap rated 117% stronger than gray iron and an O-ring sealing configuration between the housing and bearing cap to improve clamp load and reduce the vibrational effects of modern engine designs. Nine available speed ratios and thirteen output options cover a broad range of hydraulic pump configurations. The series supports continuous-duty operation up to 670 lb-ft (908 N-m) of torque and is the only Chelsea PTO to offer all three premium options: Wet Spline, SmartStart, and Quiet Gear. Common markets include fire and rescue, refuse, truck cranes, and pumper-cleaner equipment. Call us to confirm proper fit for your transmission and application.
Features
10-bolt PowerShift (hydraulic-shift) mounting for Allison transmissions
Ductile iron bearing cap, 117% stronger than gray iron predecessor
O-ring sealing configuration between housing and bearing cap reduces vibrational effects and improves clamp load
Continuous-duty torque capacity up to 670 lb-ft (908 N-m)
Nine speed ratios and thirteen output options for flexible hydraulic pump matching
Wet Spline pump flange, SmartStart, and Quiet Gear options all available on this series
Electronic Overspeed Control (EOC) option protects driven equipment
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 torque ratings
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM
- Speed Ratios: Nine available
- Output Options: Thirteen available
- Output Shaft Types Available: 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 Available: SAE B Pump Flange, SAE C Pump Flange
- Lubrication: Pressure Lube and Wet Spline
- Continuous Operation: Yes
- Options Available: Wet Spline, SmartStart, Quiet Gear, Electronic Overspeed Control (EOC)
Additional Information
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
