The Chelsea 660XSAHX-A3GA or 660XSAHXA3GA is a 660 Series Power Take-Off assembly built for medium to heavy-duty vocational applications. It mounts via a 6-bolt pattern and uses wire/cable mechanical shift actuation. The 1-1/4" round output shaft (with key option) delivers shaft power of 36 HP at 500 RPM, 71 HP at 1,000 RPM, and 107 HP at 1,500 RPM. Intermittent torque capacity for the 660 Series reaches 375 lb-ft (508 Nm); verify actual ratings on the application pages for your specific truck. Compatible transmissions include Eaton/Fuller, Volvo/Mack, Hino, and other 6-bolt manual units. Tapered cone bearings on the output shaft and tapered bearings on the input shaft replace the needle-bearing design found on smaller PTO series, increasing load-bearing capability. Call us to confirm proper fit for your transmission and application.
Features
6-Bolt mounting pattern fits most popular manual transmissions including Eaton/Fuller, Volvo/Mack, and Hino
Wire/cable mechanical shift actuation
1-1/4" round output shaft with key; shaft power rated at 36 HP (500 RPM), 71 HP (1,000 RPM), 107 HP (1,500 RPM)
Intermittent torque capacity up to 375 lb-ft / 508 Nm (confirm actual rating on application pages)
One-piece gears for higher torque capacity
Cast iron bearing caps and greaseable shaft options for extended service life
Tech Specs
- Intermittent Torque: 375 lb-ft / 508 Nm (check application pages for actual torque rating for your vehicle)
- Shift Type: Wire/Cable, Mechanical
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4" Round; 1-1/4" Round with key
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 36 HP / 27 kW (500 RPM), 71 HP / 53 kW (1,000 RPM), 107 HP / 80 kW (1,500 RPM)
- Compatible Transmission Manufacturers: Eaton/Fuller, Volvo/Mack, Hino, Other 6-bolt manual units
- Continuous Operation: Yes, with 30% de-rating
Additional Information
