The Chelsea 660 Series Power Take-Off Assembly, part number 660XQAHX-A5XD or 660XQAHXA5XD, is a 6-bolt mount PTO built for medium- to heavy-duty vocational applications. It uses a wire/cable mechanical shift and delivers an intermittent torque rating of up to 375 lb-ft (508 Nm) - check application pages for actual torque ratings on your installation. The 1-1/4" round output shaft with key suits a range of hydraulic pump and auxiliary drive setups. Compatible transmissions include Eaton/Fuller, Volvo/Mack, Hino, and other 6-bolt housings. Shaft power output runs 36 HP at 500 RPM, 71 HP at 1,000 RPM, and 107 HP at 1,500 RPM. Cast iron bearing caps and one-piece gears are standard 660 Series construction. Call us to confirm proper fit for your application.
The Chelsea 660 Series is suited for aerial devices, dump trucks, service trucks, snow and ice removal equipment, and blower and product pump applications. Four internal speed ratios and ten shift options are available across the 660 Series, with twenty-six output configurations including a 360-degree rotatable flange option for optimal pump positioning. The 660 Series also features tapered cone bearings on the output shaft and tapered bearings on the input shaft for greater load-bearing capability compared to needle-bearing designs.
Features
6-Bolt mounting for compatibility with Eaton/Fuller, Volvo/Mack, Hino, and other popular manual transmissions
Wire/cable mechanical shift type
Intermittent torque rating up to 375 lb-ft (508 Nm) - verify actual rating on application pages
1-1/4" round output shaft with key
One-piece gears for higher torque capacity
Cast iron bearing caps and greaseable shaft options for extended service life
Tech Specs
- Intermittent Torque: Up to 375 lb-ft (508 Nm) - Check Application Pages for Actual Torque Ratings
- Shift Type: Wire/Cable, Mechanical
- Output Power: 56+ HP (51+ kW)
- Transmission Manufacturer Compatibility: Eaton/Fuller, Hino, Volvo/Mack, Other 6-Bolt
- Output Shaft Type: 1-1/4" Round with Key
- Mounting Type: 6-Bolt
- Shaft Power: 36 HP (27 kW) at 500 RPM, 71 HP (53 kW) at 1,000 RPM, 107 HP (80 kW) at 1,500 RPM
- Continuous Operation: Yes, with 30% de-rating
Additional Information
The Chelsea 660 Series is suited for aerial devices, dump trucks, service trucks, snow and ice removal equipment, and blower and product pump applications. Four internal speed ratios and ten shift options are available across the 660 Series, with twenty-six output configurations including a 360-degree rotatable flange option for optimal pump positioning. The 660 Series also features tapered cone bearings on the output shaft and tapered bearings on the input shaft for greater load-bearing capability compared to needle-bearing designs.
