The Chelsea 871LAFJW-B5TZ or 871LAFJWB5TZ is a 10-bolt PowerShift (hydraulic) Power Take-Off from Chelsea's 871 Series, designed for Allison transmission applications. This series carries a continuous torque rating up to 670 lb-ft (908 N-m) with no derating required for continuous-duty use. The ductile iron bearing cap is 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap resists the vibrational effects of modern engine designs. Nine speed ratios and thirteen output options cover a broad range of vocational demands including fire and rescue, truck cranes, refuse, and pumper-cleaner equipment. The 871 Series supersedes the Chelsea 870 Series. Call us to confirm proper fit for your specific transmission and application.
Features
10-bolt PowerShift (hydraulic) mounting for Allison transmissions
Continuous torque rating 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 reduces vibrational damage and improves clamp load
Nine speed ratios and thirteen output shaft/flange options
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 (check application pages for actual ratings)
- Shaft Power: 64 HP at 500 RPM / 128 HP at 1,000 RPM
- 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
- Speed Ratios: 9 available
- Output Options: 13 available
- Lubricant: Pressure Lube and Wet Spline
- Continuous Operation: Yes
- Series: Chelsea 871 (supersedes Chelsea 870 Series)
Additional Information
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
