The Chelsea 871 Series Power Take-Off Assembly, part number 871LFFJW-B5TY or 871LFFJWB5TY, is a 10-bolt PowerShift (hydraulic) PTO designed for Allison transmissions. The 871 Series replaces the earlier Chelsea 870 Series and brings upgraded construction throughout. A ductile iron bearing cap rated 117% stronger than gray iron and an o-ring sealing configuration between the housing and bearing cap improve clamp load while reducing vibration effects from modern engine designs. The compact housing keeps clearance issues to a minimum. This series supports nine speed ratios, thirteen output options, and continuous-duty operation up to 670 lb-ft (908 N-m) of torque. The 871 is the only Chelsea PTO to combine Wet Spline, SmartStart, and Quiet Gear options in a single platform. Call us to confirm proper fit for your application.
Features
10-bolt PowerShift (hydraulic) mounting for Allison transmissions
Ductile iron bearing cap, 117% stronger than gray iron
O-ring sealing between housing and bearing cap reduces vibration effects and improves clamp load
Nine speed ratios and thirteen output options for broad application coverage
Continuous-duty torque rating up to 670 lb-ft (908 N-m)
Wet Spline, SmartStart, and Quiet Gear options available, 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
- Speed Ratios: Nine
- Output Options: Thirteen
- Continuous Operation: Yes
- Lubricant System: Pressure Lube and Wet Spline
- 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
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM
Additional Information
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
