The Chelsea 871 Series Power Take-Off Assembly, part number 871XDKVP-B5XV or 871XDKVPB5XV, is a 10-bolt hydraulic PowerShift PTO rated for up to 670 lb-ft (908 N-m) continuous torque with no derating required for continuous duty. Built for Allison transmission applications, the 871 Series provides nine speed ratios and thirteen output configurations to suit a wide range of vocational demands, including fire and rescue, refuse, pumper cleaner, and truck crane work. The ductile iron bearing cap is 117% stronger than gray iron, and the o-ring sealing configuration between the housing and bearing cap reduces vibrational effects while improving clamp load. Options include Wet Spline pump flange, SmartStart for reduced shock load at start-up, Quiet Gear input, and Electronic Overspeed Control (EOC). The 871 Series replaces the earlier Chelsea 870 Series PTO. Call us to confirm proper fit for your application.
The 871 Series is the only Chelsea PTO to offer all three of Chelsea's high-demand options together: Wet Spline, SmartStart, and Quiet Gear. Wet Spline lubrication extends pump flange and output shaft service life. SmartStart reduces shock load during engagement, which is especially valuable in refuse and fire apparatus applications. Electronic Overspeed Control (EOC) provides a layer of protection for driven equipment. The compact housing design reduces clearance concerns during installation, and the multiple assembly arrangements give installers flexibility in tight chassis environments. Typical markets include fire and rescue apparatus, truck cranes, pumper cleaners, and refuse vehicles. Reference documents include the 267/281/288/871/878 Series Owner's Manual and the 871 Series Parts List (HY25-2871-M1/US).
Features
10-bolt hydraulic PowerShift mounting for Allison transmissions
Continuous torque rating up to 670 lb-ft (908 N-m) - no derating needed for continuous duty
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
Nine speed ratios and thirteen output options
Optional Wet Spline pump flange, SmartStart, Quiet Gear input, and Electronic Overspeed Control (EOC)
Tech Specs
- Mounting Type: 10-Bolt
- Shift Type: PowerShift (Hydraulic)
- Transmission Manufacturer: Allison
- Continuous Torque: 670 lb-ft (908 N-m)
- Speed Ratios: Nine
- Output Options: Thirteen
- Lubricant: 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 Type: SAE B Pump Flange, SAE C Pump Flange
- Shaft Power: 64 HP (500 RPM), 128 HP (1000 RPM)
- Continuous Operation: Yes
- Replaces: Chelsea 870 Series PTO
Additional Information
The 871 Series is the only Chelsea PTO to offer all three of Chelsea's high-demand options together: Wet Spline, SmartStart, and Quiet Gear. Wet Spline lubrication extends pump flange and output shaft service life. SmartStart reduces shock load during engagement, which is especially valuable in refuse and fire apparatus applications. Electronic Overspeed Control (EOC) provides a layer of protection for driven equipment. The compact housing design reduces clearance concerns during installation, and the multiple assembly arrangements give installers flexibility in tight chassis environments. Typical markets include fire and rescue apparatus, truck cranes, pumper cleaners, and refuse vehicles. Reference documents include the 267/281/288/871/878 Series Owner's Manual and the 871 Series Parts List (HY25-2871-M1/US).
Parts Manual: Chelsea 871 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
