The Chelsea 871 Series Power Take-Off Assembly, part number 871XAQTP-D3RY or 871XAQTPD3RY, is a 10-bolt hydraulic PowerShift PTO designed for Allison transmissions. The 871 Series carries a continuous torque rating of up to 670 lb-ft (908 N-m) with no derating required for continuous-duty operation. Nine available speed ratios and thirteen output options give this unit a wide application range covering fire and rescue apparatus, truck cranes, pumper cleaners, and refuse trucks. The compact housing reduces clearance conflicts at installation, and the ductile iron bearing cap is 117% stronger than gray iron. The 871 Series also supports Chelsea's Wet Spline, SmartStart, and Quiet Gear options. Call us to confirm proper fit for your specific Allison transmission and truck application.
Features
10-bolt hydraulic PowerShift mounting for Allison transmissions
Continuous torque rating up to 670 lb-ft (908 N-m), no derating required for continuous-duty use
Ductile iron bearing cap, 117% stronger than gray iron
O-ring sealing configuration between housing and bearing cap reduces vibrational effects and improves clamp load
Nine speed ratios and thirteen output options for broad application flexibility
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)
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM
- 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 Types: SAE B Pump Flange, SAE C Pump Flange
- Speed Ratios: Nine available
- Output Options: Thirteen available
- Lubricant: 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.
