The Chelsea 660 Series Power Take-Off Assembly, part number 660XFAHP-M5RA or 660XFAHPM5RA, is built for medium to heavy-duty vocational work. It mounts to 6-bolt manual transmissions from Eaton/Fuller, Volvo/Mack, Hino, and other compatible manufacturers. Wire/cable mechanical shift and a 1-1/4" round output shaft with keyway keep installation straightforward on common service truck, dump truck, and aerial device setups. The 660 Series carries an intermittent torque rating up to 375 lb-ft (508 Nm) and delivers shaft power of 36 HP at 500 RPM, 71 HP at 1000 RPM, and 107 HP at 1500 RPM. Cast iron bearing caps and one-piece gears contribute to load capacity and durability under sustained use. Continuous operation is supported with a 30% de-rating applied. Call us to confirm proper fit for your transmission and application.
Features
6-bolt mounting type, compatible with Eaton/Fuller, Volvo/Mack, Hino, and other manual transmissions
Wire/cable mechanical shift operation
1-1/4" round output shaft with keyway
Intermittent torque rating up to 375 lb-ft (508 Nm) - verify actual rating on application pages
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
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
- Transmission Compatibility: Eaton/Fuller, Volvo/Mack, Hino, Other 6-bolt manual transmissions
- Output Shaft Type: 1-1/4" Round with keyway
- 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)
- Continuous Operation: Yes, with 30% de-rating
Additional Information
