The Chelsea 871 Series Power Take-Off, part number 871LEFJW-B5TF or 871LEFJWB5TF, is a 10-bolt PowerShift (hydraulic-shift) PTO designed for Allison transmission applications. The 871 Series delivers continuous-duty torque capacity up to 670 lb-ft (908 N-m) with nine available speed ratios and thirteen output options, giving installers flexibility for fire and rescue, truck crane, pumper cleaner, and refuse applications. A ductile iron bearing cap rated 117% stronger than gray iron and an O-ring sealing configuration between the housing and bearing cap reduce the vibrational stress that modern engine designs place on the PTO. The compact housing profile minimizes clearance conflicts, and optional Wet Spline, SmartStart, and Quiet Gear configurations are available. Chelsea's 871 Series is the only Chelsea PTO to offer all three of those solutions in one platform. Call us to confirm the correct configuration for your application.
The 871 Series replaces the earlier Chelsea 870 Series PTO. Documented references for this series include the 267/281/288/871/878 Series Owner's Manual and the 871 Series Parts List (HY25-2871-M1/US). Markets served include fire and rescue, truck cranes, pumper cleaner, and refuse. The 871 is the only Chelsea PTO platform to offer Wet Spline, SmartStart, and Quiet Gear as a combined option set. Part number 871LEFJW-B5TF is also referenced as SP871LEFJW-B5TF. Contact Pro Gear and Transmission to confirm the correct output configuration and gear ratio for your specific installation.
Features
10-bolt PowerShift (hydraulic) mounting for Allison transmission applications
Continuous-duty torque capacity up to 670 lb-ft / 908 N-m, no derating required
Ductile iron bearing cap, 117% stronger than gray iron predecessor
O-ring sealing configuration between housing and bearing cap reduces vibrational effects and improves clamp load
Nine speed ratios and thirteen output options for wide application flexibility
Optional Wet Spline pump flange, SmartStart shock-load reduction, Quiet Gear input, and Electronic Overspeed Control (EOC)
Tech Specs
- Shift Type: PowerShift (Hydraulic)
- Mounting: 10-Bolt
- Transmission Compatibility: Allison
- Continuous Torque: 670 lb-ft / 908 N-m (verify actual rating on application pages)
- Speed Ratios: Nine available
- Output Options: Thirteen available
- 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
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1000 RPM
- Continuous Operation: Yes
- Options: Wet Spline, SmartStart, Quiet Gear, Electronic Overspeed Control (EOC)
- Lubricant Type: Pressure Lube and Wet Spline
Additional Information
The 871 Series replaces the earlier Chelsea 870 Series PTO. Documented references for this series include the 267/281/288/871/878 Series Owner's Manual and the 871 Series Parts List (HY25-2871-M1/US). Markets served include fire and rescue, truck cranes, pumper cleaner, and refuse. The 871 is the only Chelsea PTO platform to offer Wet Spline, SmartStart, and Quiet Gear as a combined option set. Part number 871LEFJW-B5TF is also referenced as SP871LEFJW-B5TF. Contact Pro Gear and Transmission to confirm the correct output configuration and gear ratio for your specific installation.
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
