The Chelsea 660ZSDAX-A3XD or 660ZSDAXA3XD 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 engagement. The output shaft is a 1-1/4" round design, also available with a 5/16" keyway. Intermittent torque capacity for the 660 Series reaches up to 375 lb-ft (508 Nm), and shaft power output runs 36 HP at 500 RPM, 71 HP at 1000 RPM, and 107 HP at 1500 RPM. Compatible transmissions include Eaton/Fuller, Volvo/Mack, Hino, and other select manufacturers. A genuine Chelsea part available from Pro Gear and Transmission. 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. The 660 Series features tapered cone bearings on the output shaft and tapered bearings on the input shaft in place of needle bearings, providing greater load-bearing capability. The space-saving shift cover is designed to maximize clearance under the truck. Continuous operation is supported with a 30% de-rating applied. Twenty-six output configurations are available across the 660 Series, including Chelsea's 360-degree rotatable flange option for flexible pump positioning, four internal speed ratios, and ten shift options.
Features
6-bolt mounting pattern fits most popular manual transmissions including Eaton/Fuller, Volvo/Mack, and Hino
Wire/cable mechanical shift engagement
1-1/4" round output shaft with keyway option
Intermittent torque capacity up to 375 lb-ft (508 Nm) for the 660 Series
Shaft power: 36 HP at 500 RPM, 71 HP at 1000 RPM, 107 HP at 1500 RPM
One-piece gears, 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 Ratings)
- Shift Type: Wire/Cable, Mechanical
- Output Power: 56+ HP / 51+ kW
- Compatible Transmissions: Eaton/Fuller, Hino, Volvo/Mack, Other
- Output Shaft Type: 1-1/4" Round; 1-1/4" Round with Key
- Mounting Type: 6-Bolt
- Shaft Power: 36 HP (500 RPM), 71 HP (1000 RPM), 107 HP (1500 RPM) / 27 kW (500 RPM), 53 kW (1000 RPM), 80 kW (1500 RPM)
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. The 660 Series features tapered cone bearings on the output shaft and tapered bearings on the input shaft in place of needle bearings, providing greater load-bearing capability. The space-saving shift cover is designed to maximize clearance under the truck. Continuous operation is supported with a 30% de-rating applied. Twenty-six output configurations are available across the 660 Series, including Chelsea's 360-degree rotatable flange option for flexible pump positioning, four internal speed ratios, and ten shift options.
