The Chelsea 871LAFJW-B3TY or 871LAFJWB3TY is a 10-bolt PowerShift (hydraulic-shift) Power Take-Off from Chelsea's 871 Series, designed for Allison transmission applications. This series delivers continuous torque capacity up to 670 lb-ft (908 N-m) with no derating required for continuous-duty use. Nine speed ratios and thirteen output options give installers a wide range of configuration choices. A ductile iron bearing cap rated 117% stronger than gray iron resists the vibrational stress of modern engine designs. The 871 Series is the only Chelsea PTO to combine all three premium options - Wet Spline, SmartStart, and Quiet Gear - in a single compact housing that minimizes clearance concerns. Common markets include fire and rescue, truck cranes, pumper-cleaner, and refuse trucks. Call us to confirm proper fit for your specific transmission and 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, resists vibration from modern engine designs
O-ring sealing configuration between housing and bearing cap improves clamp load
Nine speed ratios and thirteen output options for broad application flexibility
Wet Spline pump flange, SmartStart, and Quiet Gear options available; 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 1,000 RPM
- Speed Ratios: Nine
- Output Options: Thirteen
- Lubricant Options: Pressure Lube (P) / Wet Spline (W)
- 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
Additional Information
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
