The Chelsea 871 Series Power Take-Off, part number 871XAFJP-B5RZ or 871XAFJPB5RZ, is a 10-bolt hydraulic PowerShift PTO engineered for Allison transmissions. The 871 Series carries continuous torque ratings up to 670 lb-ft (908 N-m) with no derating required for continuous-duty service. Nine available speed ratios and thirteen output configurations give installers the flexibility to match a wide range of hydraulic pump setups. The ductile iron bearing cap is 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap resists vibration-induced clamp-load loss. Optional features for this series include Wet Spline pump flange for extended PTO and pump shaft life, Quiet Gear input, SmartStart shock-load reduction, and Electronic Overspeed Control (EOC). The compact housing minimizes clearance concerns on tight installations. Call us to confirm proper fit for your application.
Features
10-bolt hydraulic PowerShift mount designed for Allison transmissions
Continuous torque capacity up to 670 lb-ft (908 N-m) with no continuous-duty derating required
Ductile iron bearing cap, 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 versatile pump drive configurations
Optional Wet Spline pump flange, Quiet Gear input, SmartStart, and Electronic Overspeed Control (EOC)
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Application: 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: 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
- Continuous Operation: Yes
- Lubricant Options: Pressure Lube, Wet Spline
Additional Information
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
