The Chelsea 871 Series Power Take-Off, part number 871LBFJW-B5TK or 871LBFJWB5TK, is a 10-bolt PowerShift (hydraulic) PTO designed for Allison-mounted applications. The 871 Series delivers continuous torque capacity up to 670 lb-ft (908 N-m) with no derating required for continuous duty. Nine speed ratios and thirteen output options give this unit exceptional installation flexibility, while a compact housing minimizes clearance problems. A ductile iron bearing cap rated 117% stronger than gray iron and an O-ring sealing configuration between the housing and bearing cap reduce vibrational effects and improve clamp load. Optional Wet Spline pump flange, SmartStart, and Quiet Gear input round out the feature set. The 871 Series is the only Chelsea PTO to offer all three of those options simultaneously. Call us to confirm proper fit for your transmission and application.
The Chelsea 871 Series replaces the earlier 870 Series PTO. Common applications include fire and rescue, truck cranes, pumper-cleaner units, and refuse trucks. Electronic Overspeed Control (EOC) is available to protect driven equipment from overspeed damage. SmartStart reduces shock load at start-up on qualifying applications. The 871 Series part number 871LBFJW-B5TK is also referenced as SP871LBFJW-B5TK in some catalog listings. Not sure this is the right PTO for your truck? Give us a call.
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
Continuous torque capacity up to 670 lb-ft / 908 N-m, no continuous-duty derating required
Nine speed ratios and thirteen output options
Wet Spline pump flange, SmartStart, and Quiet Gear input options all available on this series
Tech Specs
- Mounting: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque Capacity: Up to 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
- Output Options: Thirteen
- Lubricant System: Pressure Lube and Wet Spline
- 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
- Continuous Operation: Yes
- Optional Features: Wet Spline pump flange, SmartStart, Quiet Gear input, Electronic Overspeed Control (EOC)
Additional Information
The Chelsea 871 Series replaces the earlier 870 Series PTO. Common applications include fire and rescue, truck cranes, pumper-cleaner units, and refuse trucks. Electronic Overspeed Control (EOC) is available to protect driven equipment from overspeed damage. SmartStart reduces shock load at start-up on qualifying applications. The 871 Series part number 871LBFJW-B5TK is also referenced as SP871LBFJW-B5TK in some catalog listings. Not sure this is the right PTO for your truck? Give us a call.
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
