The Chelsea 871 Series Power Take-Off Assembly, part number 871XAFJP-G5XV or 871XAFJPG5XV, is a 10-bolt hydraulic PowerShift PTO designed for Allison transmissions. The series 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 installation requirements, while the compact housing design reduces clearance concerns in tight engine bays. A ductile iron bearing cap, rated 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap improve clamp load and reduce vibrational stress from modern engine designs. Wet Spline, SmartStart, and Quiet Gear options are each available on this series. Call us to confirm proper fit for your application.
The 871 Series replaces Chelsea's popular 870 Series PTO. Documented Parker Chelsea references for this series include the 871 Series Parts List (HY25-2871-M1/US) and the 267/281/288/871/878 Series Owner's Manual. Typical market applications for the 871 Series include fire and rescue apparatus, truck cranes, pumper cleaners, and refuse vehicles.
Features
10-bolt PowerShift (hydraulic) mounting for Allison transmissions
Continuous torque capacity up to 670 lb-ft / 908 N-m
Ductile iron bearing cap, 117% stronger than gray iron
O-ring sealing configuration reduces vibrational effects and improves clamp load
Nine speed ratios and thirteen output options for broad application coverage
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: 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
- 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
- Output Flange Types: SAE B Pump Flange, SAE C Pump Flange
- Lubrication: Pressure Lube and Wet Spline
- Continuous Operation: Yes
Additional Information
The 871 Series replaces Chelsea's popular 870 Series PTO. Documented Parker Chelsea references for this series include the 871 Series Parts List (HY25-2871-M1/US) and the 267/281/288/871/878 Series Owner's Manual. Typical market applications for the 871 Series include fire and rescue apparatus, truck cranes, pumper cleaners, and refuse vehicles.
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
