The Chelsea 871 Series Power Take-Off Assembly, part number 871XHFJP-B3AC or 871XHFJPB3AC, is a 10-bolt PowerShift (hydraulic) PTO designed for Allison transmission applications. The 871 Series delivers continuous torque capacity up to 670 lb-ft (908 N-m) with no derating required for continuous duty, making it well suited for demanding vocations including fire and rescue, refuse, truck cranes, and pumper-cleaner equipment. Nine speed ratios and thirteen output options give installers wide flexibility. The ductile iron bearing cap is 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap improves clamp load while reducing the vibrational effects of modern engine designs. The compact housing minimizes clearance concerns during installation. Call us to confirm proper fit for your specific transmission and application.
Features
10-bolt PowerShift (hydraulic) mounting for Allison transmissions
Ductile iron bearing cap, 117% stronger than gray iron
Continuous torque capacity up to 670 lb-ft (908 N-m), no continuous-duty derating required
O-ring sealing configuration between housing and bearing cap reduces vibration effects and improves clamp load
Nine speed ratios and thirteen output options
Wet Spline pump flange, SmartStart, and Quiet Gear options available to suit application requirements
Electronic Overspeed Control (EOC) protects driven equipment
Tech Specs
- Mounting: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque: 670 lb-ft (908 N-m) - check application pages 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) / Wet Spline (W)
- 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
- Part Number: 871XHFJP-B3AC or 871XHFJPB3AC
Additional Information
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
