The Chelsea 871LAFJW-B5TF or 871LAFJWB5TF is a 10-bolt PowerShift (hydraulic) Power Take-Off from Chelsea's 871 Series, designed for Allison transmission applications. The 871 Series replaces the popular Chelsea 870 Series with meaningful upgrades: a ductile iron bearing cap rated 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap to improve clamp load and reduce vibrational effects from modern engine designs. Continuous torque capacity reaches 670 lb-ft (908 N-m), and the series supports nine speed ratios with thirteen output options. The compact housing reduces clearance issues during installation. This is the only Chelsea PTO series to offer Wet Spline, SmartStart, and Quiet Gear options together. Available from Pro Gear and Transmission. Call us to confirm proper fit for your application.
The Chelsea 871 Series is suited for demanding vocational applications including fire and rescue apparatus, truck cranes, pumper cleaners, and refuse vehicles. The 871 Series supersedes the Chelsea 870 Series PTO. For installation, wiring, and parts reference, Parker Chelsea publishes the 267/281/288/871/878 Series Owner's Manual and the 871 Series Parts List (HY25-2871-M1/US). Call us to confirm this part number fits your specific transmission and application.
Features
10-bolt PowerShift (hydraulic) mounting for Allison transmissions
Ductile iron bearing cap, 117% stronger than gray iron
O-ring sealing configuration reduces vibrational effects and improves clamp load
Continuous torque capacity up to 670 lb-ft (908 N-m)
Nine speed ratios and thirteen output options
Wet Spline pump flange, SmartStart, and Quiet Gear options available on this series
Electronic Overspeed Control (EOC) protects driven equipment
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 1000 RPM
- Speed Ratios: Nine
- Output Options: Thirteen
- Output Shaft Types: SAE B (7/8" - 13T) Pump Spline, SAE BB (1" - 15T) Pump Spline, SAE C (1-1/4" - 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
- Lubricant: Pressure Lube or Wet Spline
- Continuous Operation: Yes
Additional Information
The Chelsea 871 Series is suited for demanding vocational applications including fire and rescue apparatus, truck cranes, pumper cleaners, and refuse vehicles. The 871 Series supersedes the Chelsea 870 Series PTO. For installation, wiring, and parts reference, Parker Chelsea publishes the 267/281/288/871/878 Series Owner's Manual and the 871 Series Parts List (HY25-2871-M1/US). Call us to confirm this part number fits your specific transmission and application.
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
