The Chelsea 660 Series Power Take-Off, part number 660XFAHX-P3XD or 660XFAHXP3XD, is a 6-bolt PTO assembly built for medium- to heavy-duty vocational applications. It uses a wire/cable mechanical shift and delivers up to 375 lb-ft intermittent torque (508 Nm; verify actual rating on Chelsea application pages). The 1-1/4" round output shaft with key accepts a wide range of driven equipment. Output shaft power reaches 71 HP (53 kW) at 1,000 RPM and 107 HP at 1,500 RPM. Compatible transmission manufacturers include Eaton/Fuller, Volvo/Mack, Hino, and others. Tapered cone bearings on the output shaft and strong tapered bearings on the input shaft contribute to long service life. Continuous operation is supported with a 30% de-rating. A genuine Chelsea part from Pro Gear and Transmission. Call us to confirm proper fit for your application.
The Chelsea 660 Series is designed for vocational applications including dump trucks, aerial devices, service trucks, and snow and ice removal equipment. With four internal speed ratios and ten shift options across the series, the 660 fits a broad range of installations. The space-saving shift cover is designed to maximize clearance under the truck. For application-specific torque ratings and fitment details, consult the Chelsea 660 Series application pages or call Pro Gear and Transmission.
Features
One-piece gears engineered for higher torque capacity
Cast iron bearing caps and cast iron housing for durability
Tapered cone bearings on output shaft; tapered bearings on input shaft for greater load-bearing capability
Wire/cable mechanical shift type
6-bolt mounting, compatible with Eaton/Fuller, Volvo/Mack, Hino, and other transmissions
Greaseable shaft options for serviceability
Supports continuous operation with 30% de-rating
Tech Specs
- Intermittent Torque: 375 lb-ft / 508 Nm (check Chelsea application pages for actual torque rating)
- Shift Type: Wire/Cable, Mechanical
- Mounting Type: 6-Bolt
- Output Shaft Type: 1-1/4" Round with key
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Hino, Other
- Output Power: 56+ HP / 51+ kW
- Shaft Power: 36 HP (27 kW) at 500 RPM, 71 HP (53 kW) at 1,000 RPM, 107 HP at 1,500 RPM
- Continuous Operation: Yes, with 30% de-rating
Additional Information
The Chelsea 660 Series is designed for vocational applications including dump trucks, aerial devices, service trucks, and snow and ice removal equipment. With four internal speed ratios and ten shift options across the series, the 660 fits a broad range of installations. The space-saving shift cover is designed to maximize clearance under the truck. For application-specific torque ratings and fitment details, consult the Chelsea 660 Series application pages or call Pro Gear and Transmission.
