The Chelsea 871 Series Power Take-Off, part number 871XEQTP-D3AB or 871XEQTPD3AB, is a 10-bolt hydraulic PowerShift PTO designed for Allison transmissions. The 871 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 covering both low and high speed ranges. Thirteen output options include SAE B, SAE BB, and SAE C pump splines, DIN flange configurations, and a 1410 Series companion flange. The ductile iron bearing cap is 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap improves clamp load while resisting vibrational effects. Optional Quiet Gear input, SmartStart shock-load reduction, and Electronic Overspeed Control (EOC) are available within the series. The compact housing minimizes clearance issues in tight installations. Common markets include fire and rescue, truck cranes, pumper/cleaner, and refuse vehicles. Call us to confirm proper fit and option configuration for your application.
Features
10-bolt hydraulic PowerShift mounting for Allison transmissions
Ductile iron bearing cap rated 117% stronger than gray iron
Continuous torque capacity up to 670 lb-ft (908 N-m), no derating required for continuous duty
Nine speed ratios including low and high speed ranges
Thirteen output options: SAE B, SAE BB, SAE C pump splines, DIN flanges, and 1410 Series companion flange
Wet Spline pump flange option extends PTO and pump shaft service life
Optional SmartStart reduces shock load at start-up; 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
- Speed Ratios: Nine (includes low and high speeds)
- Output Options: Thirteen
- Output Shaft Types: SAE B (7/8" - 13T) Pump Spline, SAE BB (1" - 15T) Pump Spline, SAE C (1-1/4" - 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
- Lubricant: Pressure Lube (P) or Wet Spline (W)
- Continuous Operation: Yes
- Part Number: 871XEQTP-D3AB or 871XEQTPD3AB
Additional Information
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
