The Chelsea 871 Series Power Take-Off, part number 871XBFJP-D5RY or 871XBFJPD5RY, is a 10-bolt hydraulic PowerShift PTO designed for Allison-equipped vehicles. The 871 Series carries a continuous torque rating of up to 670 lb-ft (908 N-m) with no derating required for continuous-duty use. Nine speed ratios and thirteen output options cover a wide range of application requirements, including fire and rescue, refuse, truck cranes, and pumper cleaner rigs. A ductile iron bearing cap rated 117% stronger than gray iron, combined with an O-ring sealing configuration between the housing and bearing cap, addresses the vibrational stresses common in modern engine designs. Optional Wet Spline, SmartStart, and Quiet Gear configurations make the 871 Series the only Chelsea PTO to offer all three of those features. Call us to confirm the right configuration for your application.
The 871 Series replaces the Chelsea 870 Series PTO. Markets served include fire and rescue, refuse, truck cranes, and pumper cleaner applications. Optional configurations include Quiet Gear input, SmartStart for reduced start-up shock load, and Electronic Overspeed Control (EOC) for driven-equipment protection. Output shaft types across the 871 Series include SAE B (7/8 in. 13-tooth) pump spline, SAE BB (1 in. 15-tooth) pump spline, and SAE C (1-1/4 in. 14-tooth) pump spline, among others - confirm the specific output configuration for part 871XBFJP-D5RY when ordering.
Features
10-bolt hydraulic PowerShift mounting for Allison transmissions
Continuous torque capacity up to 670 lb-ft (908 N-m) - no continuous-duty derating required
Ductile iron bearing cap, 117% stronger than gray iron
O-ring seal between housing and bearing cap reduces vibrational effects and improves clamp load
Nine speed ratios and thirteen output options
Optional Wet Spline, SmartStart, and Electronic Overspeed Control (EOC) configurations available
Tech Specs
- Mounting: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque: 670 lb-ft / 908 N-m (check application data for actual ratings)
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1000 RPM
- Speed Ratios: Nine
- Output Options: Thirteen
- Lubricant: Pressure Lube (P) and Wet Spline (W) configurations
- Continuous Operation: Yes
Additional Information
The 871 Series replaces the Chelsea 870 Series PTO. Markets served include fire and rescue, refuse, truck cranes, and pumper cleaner applications. Optional configurations include Quiet Gear input, SmartStart for reduced start-up shock load, and Electronic Overspeed Control (EOC) for driven-equipment protection. Output shaft types across the 871 Series include SAE B (7/8 in. 13-tooth) pump spline, SAE BB (1 in. 15-tooth) pump spline, and SAE C (1-1/4 in. 14-tooth) pump spline, among others - confirm the specific output configuration for part 871XBFJP-D5RY when ordering.
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
