The Chelsea 871 Series Power Take-Off, part number 871XFFJP-D3SB or 871XFFJPD3SB, is a 10-bolt PowerShift (hydraulic) 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 applications. A ductile iron bearing cap, rated 117% stronger than gray iron, and an o-ring sealing configuration between the housing and bearing cap address the vibrational stresses of modern engine designs. Nine speed ratios and thirteen output options cover a broad range of application requirements. The 871 Series is the only Chelsea PTO to offer all three of Chelsea's premium options together: Wet Spline, SmartStart, and Quiet Gear. Typical markets include fire and rescue, truck cranes, pumper cleaner, and refuse trucks. Call us to confirm proper fit for your application.
Features
10-bolt PowerShift (hydraulic) mounting for Allison transmissions
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 including low and high speeds; thirteen output options
Wet Spline pump flange extends PTO and pump shaft service life
SmartStart and Electronic Overspeed Control (EOC) options available to protect 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 ratings)
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1,000 RPM
- Speed Ratios: Nine (including low and high)
- 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 Flange Types: SAE B Pump Flange, SAE C Pump Flange
- Lubrication: Pressure Lube with Wet Spline option
- 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.
