The Chelsea 871 Series Power Take-Off, part number 871XBKVP-B3XV or 871XBKVPB3XV, is a 10-bolt PowerShift (hydraulic) PTO designed for Allison transmission applications. The series delivers continuous torque capacity up to 670 lb-ft (908 N-m) with no derating required for continuous-duty use. Nine speed ratios and thirteen output options cover a wide range of vocational installations, including fire and rescue, refuse, pumper/cleaner, and truck crane applications. A ductile iron bearing cap rated 117% stronger than gray iron, combined with an o-ring sealing configuration between the housing and bearing cap, addresses the vibrational stress produced by modern engine designs. The compact housing profile reduces clearance concerns during installation. Call us to confirm proper fit for your specific transmission and application.
The 871 Series supersedes the Chelsea 870 Series PTO. Available options on this series include Wet Spline pump flange for extended PTO and pump shaft life, SmartStart to reduce shock load at start-up, Quiet Gear input, and Electronic Overspeed Control (EOC) to protect driven equipment. The compact housing design is well suited for installations where vertical clearance is limited. Markets served include fire and rescue, refuse, pumper/cleaner, and truck crane vocations.
Features
10-bolt PowerShift (hydraulic) mounting for Allison transmissions
Continuous torque capacity up to 670 lb-ft (908 N-m) with no continuous-duty derating required
Ductile iron bearing cap, 117% stronger than gray iron
O-ring sealing configuration between housing and bearing cap reduces vibration effects and improves clamp load
Nine speed ratios and thirteen output options
Wet Spline pump flange, SmartStart, and Quiet Gear options available on this series
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
- 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
- Output Types: SAE B Pump Flange, SAE C Pump Flange
- Lubrication: Pressure Lube and Wet Spline
- Continuous Operation: Yes
Additional Information
The 871 Series supersedes the Chelsea 870 Series PTO. Available options on this series include Wet Spline pump flange for extended PTO and pump shaft life, SmartStart to reduce shock load at start-up, Quiet Gear input, and Electronic Overspeed Control (EOC) to protect driven equipment. The compact housing design is well suited for installations where vertical clearance is limited. Markets served include fire and rescue, refuse, pumper/cleaner, and truck crane vocations.
Parts manual and diagrams: Chelsea 871 Series PTO parts list with prices
