The Chelsea 871 Series Power Take-Off Assembly, part number 871XAFJP-B5RF or 871XAFJPB5RF, is a 10-bolt hydraulic PowerShift PTO designed for Allison transmission applications. The 871 Series delivers continuous torque capacity up to 670 lb-ft (908 N-m) with no derating required for continuous-duty operation. Nine speed ratios and thirteen output options give fleet spec writers real flexibility across fire and rescue, truck crane, refuse, and pumper-cleaner applications. The ductile iron bearing cap tests 117% stronger than gray iron, and the O-ring sealing configuration between the housing and bearing cap reduces the vibrational effects of modern engine designs. Wet Spline, SmartStart, and Quiet Gear options are available on this series. The 871 Series replaces the earlier Chelsea 870 Series. Call us to confirm proper fit for your application.
Features
10-bolt hydraulic PowerShift mounting for Allison transmissions
Continuous torque capacity up to 670 lb-ft (908 N-m) - no continuous-duty derating required
Ductile iron bearing cap rated 117% stronger than gray iron
O-ring sealing between housing and bearing cap reduces vibration-related clamp loss
Nine speed ratios and thirteen output options
Wet Spline pump flange, SmartStart, and Quiet Gear options available on this series
Tech Specs
- Mounting: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Application: Allison
- Continuous Torque: up to 670 lb-ft (908 N-m)
- Speed Ratios: Nine
- Output Options: Thirteen
- Lubricant System: Pressure Lube and Wet Spline options
- 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
- Continuous Operation: Yes
- Supersedes: Chelsea 870 Series
Additional Information
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
