The Chelsea 871 Series Power Take-Off (PTO), part number 871XFFJP-D5BV or 871XFFJPD5BV, is a 10-bolt PowerShift (hydraulic) unit designed for Allison transmissions. The 871 Series delivers continuous torque capacity up to 670 lb-ft (908 N-m) with no derating required for continuous duty. Nine available speed ratios and thirteen output configurations give installers the flexibility to match a wide range of hydraulic pump and driven-equipment setups. The bearing cap is ductile iron, rated 117% stronger than gray iron, and the housing-to-cap interface uses an O-ring sealing configuration to improve clamp load and reduce vibrational effects. The compact housing profile minimizes clearance conflicts during installation. Optional features include Wet Spline pump flange for extended shaft life, Quiet Gear input, SmartStart for reduced shock load at startup, and Electronic Overspeed Control (EOC) to protect driven equipment. Common markets include fire and rescue, truck cranes, pumper-cleaner, and refuse vehicles. Call us to confirm the correct 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 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 configurations
Optional Wet Spline pump flange, Quiet Gear input, SmartStart, and Electronic Overspeed Control (EOC)
Tech Specs
- Mounting: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque Capacity: Up to 670 lb-ft (908 N-m)
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1000 RPM (48 kW at 500 RPM / 95 kW at 1000 RPM)
- Output Shaft Options: 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 Options: SAE B Pump Flange, SAE C Pump Flange
- Speed Ratios Available: Nine
- Total Output Configurations: Thirteen
- Continuous Operation: Yes
- Lubricant System: Pressure Lube (P) and Wet Spline (W)
Additional Information
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
