The Chelsea 660XSAHX-M5XK or 660XSAHXM5XK is a 660 Series Power Take-Off designed to fit most popular 6-bolt manual transmissions, including Eaton/Fuller, Volvo/Mack, and other common applications. Part of Chelsea's cast iron 660 Series, this PTO carries a series torque capacity of up to 375 lb-ft, making it suited for medium to heavy-duty vocational work such as dump trucks, aerial devices, service trucks, and blower or product pump systems. The 660 Series uses tapered cone bearings on the output shaft and tapered bearings on the input shaft for strong load-bearing capability. Shift options include wire/cable and mechanical. Call us to confirm proper fit for your specific transmission and application.
Features
Chelsea 660 Series PTO, part number 660XSAHX-M5XK or 660XSAHXM5XK
Fits most popular 6-bolt manual transmissions including Eaton/Fuller and Volvo/Mack
Series torque capacity up to 375 lb-ft for demanding medium to heavy-duty use
Cast iron housing with tapered cone bearings on output shaft and tapered bearings on input shaft
Supports continuous operation with 30% de-rating
Wire/cable and mechanical shift types available within the 660 Series
Tech Specs
- Mounting Type: 6-Bolt
- Compatible Transmissions: Eaton/Fuller, Volvo/Mack, and other 6-bolt manual transmissions
- Series Intermittent Torque Capacity: 375 lb-ft (508 Nm) - check application pages for actual torque rating
- Continuous Operation: Yes, with 30% de-rating
- Shift Type: Wire/Cable or Mechanical
- Output Power (series): 56+ HP / 51+ kW
- Shaft Power (series): 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
- Housing Material: Cast Iron
- Bearing Type: Tapered cone bearings on output shaft; tapered bearings on input shaft
Additional Information
The Chelsea 660 Series is designed for vocational markets including aerial, construction, dump truck, snow and ice removal, and municipal equipment. The 660 Series offers 26 output options within the product family - including Chelsea's 360-degree rotatable flange for flexible pump positioning - along with four internal speed ratios and ten shift configurations. Compatible output shaft types within the series include SAE A, SAE B, SAE C, SAE BB pump splines, round shaft, DIN 5462 pump spline, and 1410 companion flange. The 660 Series Parts List (HY25-2660-M1_US) and the 340/348/442/447/489/660/680/823/863/880 Series Owner's Manual are available from Parker Chelsea for detailed application and installation guidance.Parts Manual: Chelsea 660 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
