The Chelsea 871XCFJW-B5RY or 871XCFJWB5RY is a 10-bolt PowerShift (hydraulic) Power Take-Off from the 871 Series, designed for Allison transmission applications. The 871 Series delivers continuous-duty torque capacity up to 670 lb-ft (908 N-m) with no derating required for continuous operation. Nine speed ratios and thirteen output options give installers flexibility across a wide range of vocational equipment. 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 stress common in modern engine designs. Optional Wet Spline pump flange, SmartStart shock-load reduction, and Quiet Gear input make this the only Chelsea PTO to offer all three of those features. The compact housing minimizes clearance conflicts during installation. Call us to confirm proper fit for your application.
The 871 Series replaces the earlier Chelsea 870 Series PTO. All three of Chelsea's high-demand options are available on this series: Wet Spline pump flange to extend PTO and pump shaft life, SmartStart to reduce shock load at start-up, and Quiet Gear input. Electronic Overspeed Control (EOC) is available to protect driven equipment. Typical market applications for the 871 Series include fire and rescue, truck cranes, pumper-cleaner trucks, and refuse vehicles.
Features
10-bolt PowerShift (hydraulic) mounting for Allison transmissions
Ductile iron bearing cap, 117% stronger than gray iron
Continuous-duty torque capacity up to 670 lb-ft (908 N-m)
Nine speed ratios and thirteen output options
O-ring sealing configuration reduces vibrational effects and improves clamp load
Optional Wet Spline flange, SmartStart, and Quiet Gear input available on this series
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque: 670 lb-ft (908 N-m)
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1,000 RPM
- Speed Ratios: Nine
- Output Options: Thirteen
- 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 Types: SAE B Pump Flange, SAE C Pump Flange
- Lubrication: Pressure Lube with Wet Spline option
- Continuous Operation: Yes
Additional Information
The 871 Series replaces the earlier Chelsea 870 Series PTO. All three of Chelsea's high-demand options are available on this series: Wet Spline pump flange to extend PTO and pump shaft life, SmartStart to reduce shock load at start-up, and Quiet Gear input. Electronic Overspeed Control (EOC) is available to protect driven equipment. Typical market applications for the 871 Series include fire and rescue, truck cranes, pumper-cleaner trucks, and refuse vehicles.
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
