The Chelsea 871 Series Power Take-Off, part number 871XEKVW-B3RS or 871XEKVWB3RS, is a 10-bolt PowerShift (hydraulic) PTO designed for Allison transmissions. The series delivers continuous torque capacity up to 670 lb-ft (908 N-m) with no derating required for continuous duty, and offers nine speed ratios spanning low and high ranges. Thirteen output options include SAE B, SAE BB, and SAE C pump splines, DIN 5462 pump spline, companion flange, and DIN 100/120 flange configurations. A ductile iron bearing cap, rated 117% stronger than gray iron, pairs with an O-ring sealing configuration between the housing and bearing cap to combat vibrational stress from modern engine designs. Wet Spline lubrication, SmartStart, and Quiet Gear options are all available within this series. Call us to confirm proper fit and output configuration 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 vibrational effects and improves clamp load
Nine speed ratios covering low and high speed ranges
Thirteen output options including SAE B, SAE BB, SAE C pump splines, DIN 5462, and companion flange configurations
Wet Spline, SmartStart, and Quiet Gear options available within the 871 Series
Electronic Overspeed Control (EOC) protects driven equipment
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque Capacity: 670 lb-ft / 908 N-m
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1,000 RPM (48 kW at 500 RPM / 95 kW at 1,000 RPM)
- Speed Ratios: Nine (including low and high speeds)
- 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
- Lubrication: Pressure Lube and Wet Spline
- Continuous Operation: Yes
Additional Information
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
