The Chelsea 871XFFJP-B5AC or 871XFFJPB5AC is a 10-bolt, PowerShift (hydraulic) Power Take-Off from Chelsea's 871 Series, designed for Allison-transmission-equipped vehicles. The 871 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 configurations give this unit broad application flexibility across fire and rescue, truck cranes, pumper cleaner, and refuse markets. The ductile iron bearing cap is 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap reduces vibrational effects while improving clamp load. Optional Wet Spline pump flange, SmartStart, and Quiet Gear input round out the available configurations. Call us to confirm proper fit and 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
O-ring sealing configuration reduces vibrational effects and improves housing-to-cap clamp load
Nine speed ratios and thirteen output options including SAE B, SAE BB, SAE C pump spline, and companion flange
Wet Spline pump flange, SmartStart, Quiet Gear input, and Electronic Overspeed Control (EOC) options available
Tech Specs
- Mounting: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Compatibility: Allison
- Continuous Torque Capacity: 670 lb-ft / 908 N-m
- Speed Ratios: Nine available
- Output Options: Thirteen available
- Lubricant System: Pressure Lube and Wet Spline
- Output Shaft Types: SAE B (7/8"-13T) Pump Spline, SAE BB (1"-15T) Pump Spline, SAE C (1-1/4"-14T) Pump Spline, DIN 5462 Pump Spline, 1410 Series Companion Flange, DIN 120 Flange, DIN 100 Flange
- Continuous Operation: Yes
Additional Information
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
