The Chelsea 871 Series Power Take-Off, part number 871XEQTP-B3XV or 871XEQTPB3XV, is a 10-bolt PowerShift (hydraulic) PTO designed for Allison transmission applications. The 871 Series replaces the popular 870 Series with several upgraded features: a ductile iron bearing cap rated 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap to improve clamp load and reduce the effects of engine vibration. Continuous torque capacity reaches 670 lb-ft (908 N-m), and the series supports nine speed ratios along with thirteen output configurations. Optional features include Wet Spline pump flange for extended PTO and pump shaft life, SmartStart to reduce shock load at start-up, Quiet Gear input, and Electronic Overspeed Control (EOC) to protect driven equipment. Common markets include fire and rescue, refuse, truck cranes, and pumper-cleaner applications. Call us to confirm proper fit for your specific transmission and application.
Features
10-bolt PowerShift (hydraulic) mounting for Allison transmissions
Ductile iron bearing cap, 117% stronger than gray iron predecessor
O-ring sealing configuration between housing and bearing cap reduces vibration effects and improves clamp load
Continuous torque capacity up to 670 lb-ft (908 N-m); rated for continuous-duty operation without derating
Nine speed ratios and thirteen output options to match a wide range of hydraulic system requirements
Optional Wet Spline pump flange, SmartStart shock-load reduction, Quiet Gear input, and Electronic Overspeed Control (EOC) available
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque: 670 lb-ft (908 N-m)
- Speed Ratios: Nine
- Output Options: Thirteen
- Output Shaft Types Available: 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 Type Available: SAE B Pump Flange, SAE C Pump Flange
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM
- Lubricant System: Pressure Lube and Wet Spline
- Continuous Operation: Yes
- Optional Features: Wet Spline, SmartStart, Quiet Gear, Electronic Overspeed Control (EOC)
- Replaces: Chelsea 870 Series PTO
Additional Information
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
