The Chelsea 871XJFJR-D5XV is a 10-bolt PowerShift (hydraulic shift) Power Take-Off from Chelsea's 871 Series, engineered for Allison transmissions. The 871 Series carries a continuous torque rating of up to 670 lb-ft (908 Nm) with no derating required for continuous-duty operation. Its compact housing reduces clearance concerns during installation, and multiple assembly arrangements give installers flexibility in tight engine bays. The ductile iron bearing cap is 117% stronger than the gray iron cap used in the predecessor 870 Series. An o-ring sealing configuration between the housing and bearing cap improves clamp load and controls vibration. The series offers nine speed ratios and thirteen output options, including SAE B, SAE BB, and SAE C pump spline outputs.
Features
10-bolt mounting configuration for Allison transmission applications
PowerShift (hydraulic) shift type for reliable engagement
Continuous torque capacity up to 670 lb-ft (908 Nm), no continuous-duty derating required
Ductile iron bearing cap, 117% stronger than the gray iron cap on the predecessor 870 Series
O-ring seal between housing and bearing cap improves clamp load and reduces vibrational effects
Compact housing height reduces clearance issues; multiple assembly arrangements for flexible installation
Tech Specs
- Shift Type: PowerShift (Hydraulic)
- Mounting Type: 10-Bolt
- Transmission Compatibility: Allison
- Continuous Torque: 670 lb-ft (908 Nm)
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1,000 RPM
- Bearing Cap Material: Ductile Iron
- Continuous Operation: Yes
- Lubricant System: Pressure Lube / Wet Spline
- Available Speed Ratios: Nine
- Available Output Options: Thirteen
Additional Information
The Chelsea 871 Series replaces the earlier 870 Series PTO and brings several engineering upgrades to that platform. The ductile iron bearing cap provides a 117% strength improvement over the gray iron cap used in the 870 Series. The updated o-ring sealing configuration between the housing and bearing cap addresses vibrational effects associated with modern engine designs. The 871 Series is the only Chelsea PTO line to offer all three of Chelsea's specialized options on a single platform: Wet Spline (extends PTO and pump shaft life), SmartStart (reduces shock load at start-up), and Quiet Gear input. Electronic Overspeed Control (EOC) is also available to protect driven equipment. Typical market applications for the 871 Series include fire and rescue apparatus, truck cranes, pumper-cleaner units, and refuse vehicles. Parker documents available for this series include the 267/281/288/871/878 Series Owner's Manual, the 871 Series Parts List (HY25-2871-M1/US), and the 871 Series Sales Literature.Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
