The Chelsea 871 Series Power Take-Off, part number 871XEQTP-D5RY or 871XEQTPD5RY, is a 10-bolt hydraulic PowerShift PTO engineered for Allison transmissions. The series delivers continuous torque capacity up to 670 lb-ft (908 N-m) with no derating required for continuous-duty operation. A ductile iron bearing cap, 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap address the vibrational loads produced by modern engine designs. Nine speed ratios and thirteen output options cover a wide range of application requirements, from fire and rescue pumpers to refuse and truck crane service. The 871 Series is the only Chelsea PTO offering all three of Chelsea's premium options together: Wet Spline, SmartStart, and Quiet Gear. Call us to confirm proper fit for your specific transmission and chassis.
Features
10-bolt mounting, hydraulic PowerShift (PowerShift) shift type for Allison transmission applications
Torque capacity up to 670 lb-ft (908 N-m) continuous duty, no derating required
Ductile iron bearing cap rated 117% stronger than gray iron predecessor
O-ring sealing between housing and bearing cap reduces vibrational effects and improves clamp load
Nine speed ratios and thirteen output configurations available
Supports Wet Spline pump flange, SmartStart shock-load reduction, and Quiet Gear input options; 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) - check application pages for actual torque ratings
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM (48 kW at 500 RPM, 95 kW at 1000 RPM)
- 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 Flange Types: SAE B Pump Flange, SAE C Pump Flange
- Speed Ratios: Nine available
- Output Options: Thirteen available
- Lubricant Options: Pressure Lube, Wet Spline
- Continuous Operation: Yes
- Optional Features: Wet Spline, SmartStart, Quiet Gear, Electronic Overspeed Control (EOC)
Additional Information
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
