The Chelsea 660GRAHX-A3XD or 660GRAHXA3XD is a 660 Series Power Take-Off assembly built for medium- to heavy-duty vocational applications. It mounts on 6-bolt transmissions compatible with Eaton/Fuller, Hino, Volvo/Mack, and other manufacturers, and shifts via wire/cable mechanical actuation. The 1-1/4" round output shaft (with key) delivers up to 375 lb-ft intermittent torque and 56+ HP output. The 660 Series is engineered with tapered cone bearings on the output shaft and cast iron housing for load capacity beyond what a lighter-duty PTO provides. Shaft power ratings: 36 HP at 500 RPM, 71 HP at 1000 RPM, and 107 HP at 1500 RPM. Typical applications include dump trucks, aerial devices, service trucks, and snow removal equipment. Call us to confirm proper fit for your transmission and application.
Features
6-bolt mounting fits Eaton/Fuller, Hino, Volvo/Mack, and other compatible transmissions
Wire/cable mechanical shift actuation
1-1/4" round output shaft with key
Intermittent torque capacity up to 375 lb-ft (508 Nm) - confirm 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 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 (1000 RPM), 107 HP (1500 RPM) / 27 kW (500 RPM), 53 kW (1000 RPM), 80 kW (1500 RPM)
Additional Information
Parts Manual: Chelsea 660 Series PTO Parts Manual (PDF) — exploded views, item numbers and the full parts breakdown for this series.
