Description
The Chelsea 871 Series Power Take-Off, part number 871XGFJP-D5RY or 871XGFJPD5RY, is a 10-bolt PowerShift (hydraulic) PTO designed for Allison transmissions. The series carries a continuous torque rating up to 670 lb-ft (908 N-m), with nine available speed ratios and thirteen output configurations covering SAE B, SAE BB, SAE C, and DIN pump spline options. A ductile iron bearing cap delivers 117% greater strength versus gray iron, and an O-ring sealing configuration between the housing and bearing cap improves clamp load while reducing the effects of engine vibration. The compact housing reduces clearance concerns. Electronic Overspeed Control (EOC), Wet Spline pump flange, SmartStart, and Quiet Gear input are available options within the series. The 871 Series replaces the former Chelsea 870 Series PTO. Call us to confirm proper fit and option configuration for your 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, 117% stronger than gray iron predecessor
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, SAE C, and DIN pump spline
Wet Spline pump flange, SmartStart, Quiet Gear input, and Electronic Overspeed Control (EOC) options available
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque: 670 lb-ft (908 N-m)
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM
- Speed Ratios: Nine available
- Output Options: Thirteen configurations
- 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 Flanges: SAE B Pump Flange, SAE C Pump Flange
- Lubrication: Pressure Lube and Wet Spline
- Continuous Operation: Yes
- Replaces: Chelsea 870 Series PTO
Additional Information
The 871 Series is the only Chelsea PTO to offer all three of Chelsea’s premium options together: Wet Spline pump flange for extended PTO and pump shaft life, SmartStart for reduced shock load at start-up, and Quiet Gear input for noise-sensitive applications. Electronic Overspeed Control (EOC) provides additional protection for driven equipment. Typical markets for the 871 Series include fire and rescue, truck cranes, pumper/cleaner units, and refuse vehicles. Refer to Parker Chelsea application pages to confirm actual torque ratings for your specific installation. Applicable Parker documents include the 267/281/288/871/878 Series Owner’s Manual and the 871 Series Parts List (HY25-2871-M1/US).
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
