The Chelsea 871 Series Power Take-Off Assembly, part number 871XJFJP-B5XV or 871XJFJPB5XV, is a 10-bolt hydraulic PowerShift PTO designed for Allison transmissions. The 871 Series features a compact housing that reduces installation clearance concerns, and a ductile iron bearing cap rated 117% stronger than gray iron predecessors. An o-ring sealing configuration between the housing and bearing cap improves clamp load and resists vibrational stress from modern engine designs. The series supports continuous duty operation with torque capacity up to 670 lb-ft (908 Nm). Nine speed ratios and thirteen output options give this unit broad application coverage across fire and rescue, refuse, truck crane, and pumper cleaner equipment. Wet Spline, SmartStart, and Quiet Gear options are available within the 871 Series. The 871 Series is a genuine Chelsea part, sold by Pro Gear and Transmission. Call us to confirm the correct configuration for your application.
Features
10-bolt mounting configuration for Allison transmissions
Hydraulic PowerShift (PowerShift) engagement
Continuous torque capacity up to 670 lb-ft (908 Nm)
Ductile iron bearing cap, 117% stronger than gray iron predecessor
O-ring sealing between housing and bearing cap for improved clamp load
Nine speed ratios and thirteen output options across the 871 Series
Tech Specs
- Shift Type: PowerShift (Hydraulic)
- Mounting Type: 10-Bolt
- Transmission Compatibility: Allison
- Continuous Torque: 670 lb-ft (908 Nm) - check application pages for actual torque ratings
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM
- Output Type: SAE B Pump Flange, SAE C Pump Flange
- Output Shaft Options (series): SAE B (7/8 in. - 13T) Pump Spline, SAE BB (1 in. - 15T) Pump Spline, SAE C (1-1/4 in. - 14T) Pump Spline
- Continuous Operation: Yes
- Lubricant System: Pressure Lube, Wet Spline available
- Speed Ratios Available (series): Nine
- Output Options Available (series): Thirteen
- NMFC Code: 125820 (Hydraulic PTOs, Pumps, Motors, etc.)
