The Chelsea 871XCFJP-B5SV or 871XCFJPB5SV is a 10-bolt PowerShift (hydraulic) PTO from the 871 Series, designed for Allison-mounted applications. The 871 Series delivers continuous torque up to 670 lb-ft (908 N-m) with no derating required for continuous-duty operation. Nine speed ratios and thirteen output options cover a wide range of working requirements, from fire and rescue trucks to refuse and pumper-cleaner equipment. The ductile iron bearing cap is 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap improves clamp load while reducing vibrational effects from modern engine designs. A Wet Spline pump flange is included to extend PTO and pump shaft service life. Call us to confirm proper fit for your specific transmission and application.
The 871 Series directly replaces the earlier Chelsea 870 Series PTO. This series is unique among Chelsea PTOs in offering all three high-demand options together: Wet Spline, SmartStart, and Quiet Gear. SmartStart reduces shock load at start-up for demanding applications, while Electronic Overspeed Control (EOC) protects driven equipment from overspeed damage. Common markets for this series include fire and rescue apparatus, truck cranes, pumper-cleaner units, and refuse vehicles. Refer to Chelsea's 871 Series Parts List (HY25-2871-M1/US) and the 267/281/288/871/878 Series Owner's Manual for full assembly and service details.
Features
10-bolt PowerShift (hydraulic) mount for Allison transmissions
Ductile iron bearing cap rated 117% stronger than gray iron
Continuous torque capacity up to 670 lb-ft (908 N-m) - no continuous-duty derating required
O-ring sealing configuration reduces vibrational effects and improves clamp load
Nine speed ratios and thirteen output shaft options
Wet Spline pump flange, SmartStart, and Quiet Gear options available to suit specific applications
Tech Specs
- Mounting: 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 1000 RPM
- Speed Ratios: Nine
- Output Options: Thirteen
- Lubricant System: Pressure Lube (P) with Wet Spline (W)
- Continuous Operation: Yes (no derating required)
- NMFC Code: 125820 - Hydraulic PTOs, Pumps, Motors
Additional Information
The 871 Series directly replaces the earlier Chelsea 870 Series PTO. This series is unique among Chelsea PTOs in offering all three high-demand options together: Wet Spline, SmartStart, and Quiet Gear. SmartStart reduces shock load at start-up for demanding applications, while Electronic Overspeed Control (EOC) protects driven equipment from overspeed damage. Common markets for this series include fire and rescue apparatus, truck cranes, pumper-cleaner units, and refuse vehicles. Refer to Chelsea's 871 Series Parts List (HY25-2871-M1/US) and the 267/281/288/871/878 Series Owner's Manual for full assembly and service details.
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
