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The Chelsea 871XBKVP-D3RY or 871XBKVPD3RY is a 10-bolt PowerShift (hydraulic) Power Take-Off from Chelsea's 871 Series, designed for Allison transmissions. This series carries continuous torque ratings up to 670 lb-ft (908 N-m) with no derating required for continuous-duty operation. The compact housing keeps clearance issues to a minimum, while nine available speed ratios and thirteen output options give it broad application flexibility across fire and rescue, refuse, pumper/cleaner, and truck crane installations. The ductile iron bearing cap is 117% stronger than gray iron, and an O-ring sealing configuration between the housing and bearing cap reduces the damaging vibrational effects associated with modern engine designs. Wet Spline, SmartStart, and Quiet Gear options are available within this series. Call us to confirm proper fit for your application.
- 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
- 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 Available: Nine
- Output Options: Thirteen
- Continuous Operation: Yes
- Lubricant Options: Pressure Lube (P), Wet Spline (W)
- Optional Features: Quiet Gear input, SmartStart, Electronic Overspeed Control (EOC), Wet Spline pump flange
 The Chelsea 871 Series replaces the earlier 870 Series PTO. Applicable Parker Chelsea documentation includes the 267/281/288/871/878 Series Owner's Manual, the 871 Series Parts List (HY25-2871-M1/US), and the 871 Series Sales Literature. This unit is also referenced under part number SP871XBKVP-D3RY. Typical market applications include fire and rescue apparatus, refuse trucks, pumper/cleaner units, and truck cranes.
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Features
- 10-Bolt hydraulic PowerShift (hydraulic shift) mounting configuration for Allison transmissions
- Ductile iron bearing cap rated 117% stronger than gray iron for increased durability
- 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 with no continuous-duty derating required
- Nine speed ratios and thirteen output options for versatile application matching
- Wet Spline pump flange option protects PTO and pump shaft life; SmartStart and Quiet Gear options also available within the series
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