The Chelsea 660 Series Power Take-Off Assembly, part number 660XQAHX-A3GA or 660XQAHXA3GA, is a 6-bolt PTO designed for medium- to heavy-duty manual transmission applications. It fits Eaton/Fuller, Volvo/Mack, Hino, and other compatible 6-bolt transmissions. The 660 Series carries an intermittent torque rating up to 375 lb-ft (508 Nm), with continuous operation supported at a 30% de-rating. The output shaft is a 1-1/4" round with keyway. Shift is wire/cable mechanical. Output power reaches 56+ HP, with shaft power of 36 HP at 500 RPM, 71 HP at 1000 RPM, and 107 HP at 1500 RPM. The cast iron housing, tapered cone output shaft bearings, and one-piece gears contribute to a high torque capacity and extended service life. Pro Gear and Transmission supplies this as a genuine Chelsea part. Call us to confirm proper fit for your transmission and application.
The Chelsea 660 Series is suited for aerial devices, dump trucks and trailers, service trucks, snow and ice removal equipment, and blower and product pump applications. The series offers 26 output configurations, including Chelsea's 360-degree rotatable flange for pump fitment flexibility, four internal speed ratios, and ten shift options. The space-saving shift cover is designed to provide maximum clearance under the vehicle.
Features
6-bolt mounting for Eaton/Fuller, Volvo/Mack, Hino, and other compatible manual transmissions
Wire/cable mechanical shift type
Intermittent torque rating up to 375 lb-ft (508 Nm); continuous operation with 30% de-rating
1-1/4" round output shaft with keyway
One-piece gears for higher torque capacity
Cast iron bearing caps and tapered cone bearings on input and output shafts for extended load-bearing capability
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 Manufacturer: Eaton/Fuller, Hino, Volvo/Mack, Other
- Output Shaft Type: 1-1/4" Round with keyway
- Mounting Type: 6-Bolt
- Shaft Power: 36 HP (27 kW) at 500 RPM, 71 HP (53 kW) at 1000 RPM, 107 HP (80 kW) at 1500 RPM
- Continuous Operation: Yes, with 30% de-rating
Additional Information
The Chelsea 660 Series is suited for aerial devices, dump trucks and trailers, service trucks, snow and ice removal equipment, and blower and product pump applications. The series offers 26 output configurations, including Chelsea's 360-degree rotatable flange for pump fitment flexibility, four internal speed ratios, and ten shift options. The space-saving shift cover is designed to provide maximum clearance under the vehicle.
