The Chelsea 871XFFJP-N5XV is a 10-bolt PowerShift (hydraulic) Power Take-Off from the Chelsea 871 Series, designed for Allison transmissions. The 871 Series features a ductile iron bearing cap rated 117% stronger than gray iron, an o-ring sealing configuration between the housing and bearing cap for improved clamp load, and a compact housing profile that reduces clearance concerns during installation. Continuous torque capacity for the series reaches 670 lb-ft (908 Nm), with no derating required for continuous-duty operation. Nine speed ratios and thirteen output options are available across the series. The 871 Series also supports Wet Spline, SmartStart, and Quiet Gear configurations. Pro Gear and Transmission carries genuine Chelsea PTO units for heavy-duty truck applications.
Features
10-bolt mounting, PowerShift (hydraulic shift) operation
Designed for Allison transmission applications
Ductile iron bearing cap, 117% stronger than gray iron predecessor
O-ring sealing between housing and bearing cap for improved clamp load
Compact housing reduces installation clearance issues
Series supports Wet Spline, SmartStart, and Quiet Gear options
Tech Specs
- Shift Type: PowerShift (Hydraulic)
- Mounting Type: 10-Bolt
- Transmission Manufacturer: Allison
- Continuous Torque (series): 670 lb-ft / 908 Nm
- Shaft Power (series): 64 HP at 500 RPM, 128 HP at 1000 RPM
- Continuous Operation: Yes
- Output Types Available: SAE B Pump Flange, SAE C Pump Flange
- Output Shaft Types Available: SAE B (7/8" - 13T), SAE BB (1" - 15T), SAE C (1-1/4" - 14T), DIN 5462 Pump Spline, 1410 Series Companion Flange, DIN 120 Flange, DIN 100 Flange
- Speed Ratios Available (series): Nine
- Output Options Available (series): Thirteen
- Lubricant: Pressure Lube / Wet Spline
Additional Information
The Chelsea 871 Series replaces the earlier 870 Series PTO. Improvements over the predecessor include the ductile iron bearing cap and the o-ring sealing configuration, both targeted at reducing vibration damage from modern engine designs. The 871 Series is the only Chelsea PTO to offer all three of Chelsea's high-demand options: Wet Spline, SmartStart, and Quiet Gear. Electronic Overspeed Control (EOC) is available on the series to protect driven equipment. Common markets for the 871 Series include fire and rescue, truck cranes, pumper cleaners, and refuse trucks.Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
