The Chelsea 871 Series Power Take-Off, part number 871XCFJP-B5AB or 871XCFJPB5AB, is a 10-bolt PowerShift (hydraulic shift) 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 use. Nine speed ratios and thirteen output configurations give this unit a wide installation range across fire and rescue, refuse, pumper/cleaner, and truck crane applications. A ductile iron bearing cap rated 117% stronger than gray iron, combined with an O-ring sealing configuration between the housing and bearing cap, directly addresses the vibrational stress from modern engine designs. Optional Wet Spline pump flange, SmartStart shock-load reduction, Quiet Gear input, and Electronic Overspeed Control (EOC) are available within the series. Call us to confirm the exact configuration for your application.
Features
10-bolt PowerShift (hydraulic shift) mounting configuration for Allison transmissions
Continuous torque rating up to 670 lb-ft / 908 N-m, no continuous-duty derating required
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 for broad application flexibility
Wet Spline pump flange option extends PTO and pump shaft service life; SmartStart and Quiet Gear options also available within the 871 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 torque ratings)
- 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 Flange Types: SAE B Pump Flange, SAE C Pump Flange
- Shaft Power: 64 HP at 500 RPM, 128 HP at 1000 RPM
- Lubricant Options: Pressure Lube, 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.
