The Chelsea 871 Series Power Take-Off, part number 871XFQTP-B5RK or 871XFQTPB5RK, is a 10-bolt hydraulic PowerShift PTO designed for Allison transmission applications. The 871 Series delivers continuous torque capacity up to 670 lb-ft (908 N-m) with no derating required for continuous-duty service. Nine speed ratios and thirteen output options give installers a wide range of configurations to match pumping, crane, or refuse equipment. A ductile iron bearing cap rated 117% stronger than gray iron and an o-ring sealing configuration between the housing and bearing cap reduce the vibrational effects of modern engine designs. The compact housing minimizes clearance concerns, and the Wet Spline pump flange helps extend PTO and pump shaft service life. The 871 Series also supports optional SmartStart (shock-load reduction at start-up) and Quiet Gear input. Call us to confirm proper fit for your specific transmission and application.
Features
10-bolt hydraulic PowerShift mounting for Allison transmissions
Continuous torque capacity up to 670 lb-ft (908 N-m) - no derating for continuous duty
Ductile iron bearing cap, 117% stronger than gray iron
O-ring sealing configuration between housing and bearing cap to reduce vibrational effects and improve clamp load
Nine speed ratios and thirteen output options
Wet Spline pump flange, SmartStart, and Quiet Gear options available
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)
- 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
- Lubricant: Pressure Lube (P) or Wet Spline (W)
- Continuous Operation: Yes
- Options Available: 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.
