Chelsea PTO - 859 Series

Chelsea PTO - 859 Series
Technical Specifications
Performance Characteristics
Mounting Styles 10-Bolt
Shift Type PowerShift (Hydraulic)
Standard Output Shaft Size 1-1/2" - 10T Spline w/ 1410 Flange
Intermittent Torque Rating (lbs.ft) 575 (Check Application Pages for Actual Torque Ratings)
Intermittent Torque Rating (Nm) 780 (Check Application Pages for Actual Torque Ratings)
Output Shaft (HP) 500 RPM: 55, 1000 RPM: 109
Output Shaft (Kw) 500 RPM: 41, 1000 RPM: 82
Weight (lbs) 66
Weight (kg) 30
Product Info

Chelsea® - 859 Series


Quality knows quality, that’s why Allison chose Chelsea to join their engineers in developing PTOs specifically for the Allison World Transmissions. The versatile 859 Series is a shiftable PTO that exceeds the torque capacity of an 8-Bolt PTO while offering the tighter sealing of a 10-Bolt pattern. The Chelsea 859 Series Power Take-Off (PTO) is an excellent choice for market applications requiring greater torque such as fire and rescue, refuse and oil field exploration. It is available in five speed ratios and multiple output types, along with a rotatable shift valve option, including Chelsea’s popular 360° rotatable flange.


• Refuse             

• Oil Exploration              

• Fire and Rescue