The Chelsea 871XJFJP-D5AC is a 10-bolt, hydraulic PowerShift Power Take-Off from the Chelsea 871 Series, designed 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. A compact housing minimizes clearance conflicts during installation, and 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 reduces the effects of engine vibration. The series supports nine speed ratios and thirteen output configurations. Available with Wet Spline, SmartStart, and Quiet Gear options. Part number 871XJFJP-D5AC or SP871XJFJP-D5AC.
Features
10-bolt mounting, hydraulic PowerShift (Pressure Lube / Wet Spline)
Continuous torque rating 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 resists engine vibration
Nine available speed ratios; thirteen output configurations including SAE B, SAE BB, SAE C pump splines and companion flanges
Wet Spline, SmartStart, and Quiet Gear options available within the 871 Series
Tech Specs
- Series: Chelsea 871 Series
- Mounting: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque: 670 lb-ft (908 Nm)
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1,000 RPM
- Output Type: SAE B Pump Flange, SAE C Pump Flange
- Output Shaft Options: SAE B (7/8"-13T), SAE BB (1"-15T), SAE C (1-1/4"-14T) Pump Spline; 1410 Series Companion Flange; DIN 5462, DIN 100, DIN 120 Flanges
- Continuous Operation: Yes
- Speed Ratios: Nine
- Output Configurations: Thirteen
- Lubricant: Pressure Lube (P) / Wet Spline (W)
Additional Information
The 871 Series replaces the Chelsea 870 Series PTO. Key upgrades include the ductile iron bearing cap and the o-ring housing-to-bearing-cap seal, both aimed at managing vibration from modern engine designs. Electronic Overspeed Control (EOC) is available to protect driven equipment. Typical markets for this series include fire and rescue apparatus, truck cranes, pumper-cleaner units, and refuse vehicles. Refer to the 871 Series Parts List (HY25-2871-M1/US) and the 267/281/288/871/878 Series Owner's Manual for detailed application and installation guidance.Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
