The Chelsea 871 Series Power Take-Off Assembly, part number 871XEFJW-B3RS or 871XEFJWB3RS, is a 10-bolt PowerShift (hydraulic) PTO designed for Allison transmissions. The 871 Series carries a continuous torque rating up to 670 lb-ft (908 N-m) with no derating required for continuous-duty operation. Nine speed ratios and thirteen output configurations give installers flexibility across a wide range of hydraulic pump setups. The ductile iron bearing cap is 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap reduces vibrational effects and improves clamp load. Optional Wet Spline, SmartStart, and Quiet Gear features make the 871 the only Chelsea PTO to offer all three. The 871 Series replaces the Chelsea 870 Series. Call us to confirm proper fit for your application.
The 871 Series is available with three premium options: Wet Spline pump flange lubrication to extend PTO and pump shaft life, SmartStart to reduce shock load at start-up, and Quiet Gear input for noise-sensitive installations. Electronic Overspeed Control (EOC) is also available to protect driven equipment. The compact housing design keeps overall height low to minimize clearance conflicts during installation. Common markets for the 871 Series include fire and rescue, truck cranes, pumper cleaners, and refuse vehicles. For documentation, Parker publishes the 267/281/288/871/878 Series Owner's Manual and the 871 Series Parts List (HY25-2871-M1/US).
Features
10-bolt PowerShift (hydraulic) mounting for Allison transmissions
Continuous torque rating 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 between housing and bearing cap reduces vibrational effects and improves clamp load
Nine speed ratios and thirteen output options
Wet Spline, SmartStart, and Quiet Gear options available; replaces Chelsea 870 Series
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 rating
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1000 RPM
- Speed Ratios: 9
- Output Options: 13
- 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 System: Pressure Lube, Wet Spline
- Continuous Operation: Yes
- NMFC Code: 125820 - Hydraulic PTOs, Pumps, Motors, etc.
- Supersedes: Chelsea 870 Series
Additional Information
The 871 Series is available with three premium options: Wet Spline pump flange lubrication to extend PTO and pump shaft life, SmartStart to reduce shock load at start-up, and Quiet Gear input for noise-sensitive installations. Electronic Overspeed Control (EOC) is also available to protect driven equipment. The compact housing design keeps overall height low to minimize clearance conflicts during installation. Common markets for the 871 Series include fire and rescue, truck cranes, pumper cleaners, and refuse vehicles. For documentation, Parker publishes the 267/281/288/871/878 Series Owner's Manual and the 871 Series Parts List (HY25-2871-M1/US).
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
