The Chelsea 871LAFJW-B5TK or 871LAFJWB5TK is a 10-bolt PowerShift (hydraulic) Power Take-Off from Chelsea's 871 Series, 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 cycles. A ductile iron bearing cap, 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap address the vibrational stress demands of modern engine designs. The compact housing minimizes clearance conflicts during installation, and multiple assembly arrangements expand mounting options. The 871 Series is the only Chelsea PTO to combine all three high-demand options: Wet Spline, SmartStart, and Quiet Gear. Call us to confirm the proper fit for your application.
Features
10-bolt PowerShift (hydraulic) mounting for Allison transmissions
Continuous torque capacity up to 670 lb-ft / 908 N-m, no derating required for continuous duty
Ductile iron bearing cap, 117% stronger than gray iron
O-ring sealing configuration between housing and bearing cap to improve clamp load and reduce vibration effects
Nine speed ratios and thirteen output options for broad application coverage
Wet Spline pump flange, SmartStart, and Quiet Gear options all available on this series
Electronic Overspeed Control (EOC) protects driven equipment
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque: 670 lb-ft / 908 N-m (verify actual rating on application pages)
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1000 RPM
- Speed Ratios: Nine
- Output Options: Thirteen
- Lubricant: Pressure Lube and Wet Spline
- Output Shaft Types Available: 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 Types Available: SAE B Pump Flange, SAE C Pump Flange
- 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.
