The Chelsea 871 Series Power Take-Off, part number 871XAFJP-D3RF or 871XAFJPD3RF, is a 10-bolt PowerShift (hydraulic) PTO designed for Allison transmissions. The 871 Series succeeds the earlier 870 Series, carrying forward its proven design with measurable upgrades: 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 vibration-related wear. Continuous torque capacity for the series reaches up to 670 lb-ft (908 N-m), with no derating required for continuous duty. Nine speed ratios and thirteen output options cover a broad range of vocational demands, including fire and rescue, refuse, pumper/cleaner, and truck crane applications. The 871 Series is the only Chelsea PTO to offer Wet Spline, SmartStart, and Quiet Gear options on a single platform. Call us to confirm proper fit for your transmission and application.
Features
10-bolt PowerShift (hydraulic) mounting for Allison transmissions
Ductile iron bearing cap, 117% stronger than gray iron predecessor
O-ring seal between housing and bearing cap reduces vibration effects and improves clamp load
Nine speed ratios and 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
- Shift Type: PowerShift (Hydraulic)
- Mounting Type: 10-Bolt
- Transmission Manufacturer: Allison
- Continuous Torque (series): up to 670 lb-ft / 908 N-m
- Speed Ratios: Nine
- Output Options: Thirteen
- Lubricant System: Pressure Lube and 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.
