Description
The Chelsea 871 Series Power Take-Off 871XAFJP-K3XV or 871XAFJPK3XV is a compact 10-bolt, hydraulically shifted (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 configurations give installers wide flexibility across fire and rescue, refuse, pumper cleaner, and truck crane applications. A ductile iron bearing cap rated 117% stronger than gray iron and an O-ring sealing configuration between the housing and bearing cap reduce vibrational damage and improve clamp load. Optional Wet Spline pump flange, SmartStart shock-load reduction, Quiet Gear input, and Electronic Overspeed Control (EOC) are available within the series. Call us to confirm the exact configuration and proper fit for your application.
Features
10-bolt mounting, hydraulic PowerShift operation designed 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, with O-ring sealing to resist vibration
Nine speed ratios and thirteen output options for broad application coverage
Optional Wet Spline pump flange protects PTO and pump shaft in demanding cycles
Optional SmartStart (shock-load reduction) and Quiet Gear input available; Electronic Overspeed Control (EOC) protects driven equipment
Tech Specs
- Mounting: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Compatibility: Allison
- Continuous Torque: 670 lb-ft (908 N-m)
- Speed Ratios: Nine
- Output Options: Thirteen
- Lubricant System: Pressure Lube and Wet Spline
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1000 RPM (48 kW at 500 RPM / 95 kW at 1000 RPM)
- Continuous Operation: Yes
- Part Number: 871XAFJP-K3XV or 871XAFJPK3XV
Additional Information
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.







