The Chelsea 660XFDAX-A3XD or 660XFDAXA3XD is a 660 Series Power Take-Off assembly built for medium to heavy-duty vocational truck applications. It mounts on 6-bolt transmissions and is compatible with Eaton/Fuller, Volvo/Mack, and Hino gearboxes. The wire/cable mechanical shift mechanism operates the unit without an air shift cover, and the output shaft is a 1-1/4" round with keyway. The 660 Series carries an intermittent torque rating up to 375 lb-ft (508 Nm) - check application pages for your specific configuration's actual rating. Shaft power output reaches 107 HP at 1,500 RPM. Cast iron construction with tapered cone bearings on the output shaft and cast iron bearing caps give this PTO long service life in demanding cycles. A genuine Chelsea part, sold by 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. Continuous operation is supported with a 30% de-rating. The 660 Series offers 26 output configurations, four internal speed ratios, and ten shift options across the product line, making it adaptable to a wide range of vocational truck installations. For help identifying the correct 660 Series configuration for your transmission and application, contact Pro Gear and Transmission directly.
Features
6-bolt mounting, compatible with Eaton/Fuller, Volvo/Mack, and Hino transmissions
Wire/cable mechanical shift type
1-1/4" round output shaft with keyway
Intermittent torque up to 375 lb-ft (508 Nm) - verify actual rating on application pages
Shaft power: 36 HP at 500 RPM, 71 HP at 1,000 RPM, 107 HP at 1,500 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 Transmission Manufacturers: Eaton/Fuller, Hino, Volvo/Mack, Other
- Output Shaft Type: 1-1/4" Round with Key
- Mounting Type: 6-Bolt
- Shaft Power: 36 HP (500 RPM), 71 HP (1,000 RPM), 107 HP (1,500 RPM) / 27 kW (500 RPM), 53 kW (1,000 RPM), 80 kW (1,500 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. Continuous operation is supported with a 30% de-rating. The 660 Series offers 26 output configurations, four internal speed ratios, and ten shift options across the product line, making it adaptable to a wide range of vocational truck installations. For help identifying the correct 660 Series configuration for your transmission and application, contact Pro Gear and Transmission directly.
